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Question 6361Question →

A miscible liquid mixture contains three organic compounds: Liquid X (boiling point $78.3^\circ\text{C}$ ), Liquid Y (boiling point $97.1^\circ\text{C}$ ), and Liquid Z (boiling point $117.7^\circ\text{C}$ ). If this mixture is subjected to fractional distillation using an efficient fractionating column, which component will be collected first as the distillate?

Liquid X, because it has the lowest boiling point and the highest volatility among the components.

Liquid Z, because components with higher boiling points vaporize more rapidly and distill over first.

Liquid Z, because the component with the highest boiling point reaches the top of the fractionating column first.

Liquid Y, because the liquid with an intermediate boiling point distills first before the extreme components.

Show answer & explanation

Answer: Liquid X, because it has the lowest boiling point and the highest volatility among the components.

Answer

Liquid X will be collected first as the distillate because it has the lowest boiling point (

78.3^\circ\text{C}

) and highest volatility.

In fractional distillation of miscible liquids, components separate based on differences in their boiling points. Liquid X has the lowest boiling point (

78.3^\circ\text{C}

) among the three components, meaning it is the most volatile. As heat is applied, Liquid X vaporizes most readily and its vapors ascend to the top of the fractionating column first, where they enter the condenser and are collected as the first distillate fraction.

Step-by-Step Solution

Compare the boiling points of the three miscible liquids in the mixture.

Liquid X has a boiling point of

78.3^\circ\text{C}

, Liquid Y has

97.1^\circ\text{C}

, and Liquid Z has

117.7^\circ\text{C}

The boiling point determines the relative volatility of each liquid component.

Relate boiling point to volatility and order of vaporisation during fractional distillation.

Liquid X, having the lowest boiling point, has the highest vapor pressure at any given temperature and evaporates most readily.

Lower boiling point corresponds to weaker intermolecular forces and higher volatility.

Determine which component emerges first from the top of the fractionating column.

Vapors of Liquid X reach the top of the fractionating column first, condense in the Liebig condenser, and are collected as the first fraction (distillate).

Repeated condensation-vaporization cycles in the column enrich the rising vapor with the most volatile component.

Key Concept

Fractional Distillation and Boiling Point Volatility Order

Estimated Time:1m 0s

Question 6362Question →

Four synthesized batches (P, Q, R, and S) of an organic solvent were evaluated for chemical purity against a reference standard. The pure standard possesses a sharp boiling point of $142.0^\circ\text{C}$ , a fixed density of $1.04\text{ g cm}^{-3}$ , and yields a single spot on a thin-layer chromatogram with an $R_f$ value of $0.45$ . The physical data recorded for the four synthesized batches are summarized in the table below:

Batch	Boiling Range ( $^\circ\text{C}$ )	Density ( $\text{g cm}^{-3}$ )	Chromatogram Spots ( $R_f$ )
P	141.8 – 142.2	1.04	0.45
Q	138.0 – 144.5	1.01	0.45, 0.62
R	142.0 – 142.1	1.08	0.45
S	145.0 – 145.2	1.04	0.30

Based on the criteria of chemical purity, which batch represents the pure solvent, and what is the correct explanation regarding Batch R?

Batch P is the pure solvent because it conforms to all physical criteria (narrow boiling range around

142.0^\circ\text{C}

, matching density of

1.04\text{ g cm}^{-3}

, and a single

R_f

spot at

0.45

), whereas Batch R is impure because its density deviates from the pure reference value.

Batch R is the pure solvent because it exhibits the sharpest boiling range (

142.0 – 142.1^\circ\text{C}

), indicating that density variation is irrelevant when the boiling range is extremely narrow.

Batch Q is the pure solvent because the presence of two chromatogram spots (

0.45

and

0.62

) confirms that the sample undergoes beneficial fractional separation during testing.

Batch S is the pure solvent because an elevated boiling range (

145.0 – 145.2^\circ\text{C}

) demonstrates greater chemical stability and structural purity than the reference standard.

Show answer & explanation

Answer: Batch P is the pure solvent because it conforms to all physical criteria (narrow boiling range around $142.0^\circ\text{C}$ , matching density of $1.04\text{ g cm}^{-3}$ , and a single $R_f$ spot at $0.45$ ), whereas Batch R is impure because its density deviates from the pure reference value.

Answer

Batch P is the pure solvent because it satisfies all physical criteria of purity (narrow boiling range at

142.0^\circ\text{C}

, density of

1.04\text{ g cm}^{-3}

, and a single chromatographic spot at

R_f = 0.45

), whereas Batch R is impure due to its higher density of

1.08\text{ g cm}^{-3}

The correct option states that Batch P is the pure solvent because it meets all specified physical criteria of purity: a narrow boiling range centered at the reference temperature (

141.8–142.2^\circ\text{C}

142.0^\circ\text{C}

), a matching density (

1.04\text{ g cm}^{-3}

), and a single chromatographic spot at

R_f = 0.45

. Batch R, despite its narrow boiling range, has an elevated density of

1.08\text{ g cm}^{-3}

, proving the presence of a dissolved impurity.

Step-by-Step Solution

Analyze the chromatographic data for all four batches.

Batch P, R, and S each show a single spot, whereas Batch Q shows two spots (

R_f = 0.45

and

0.62

A pure substance must yield a single spot on a chromatogram under a given solvent system. Two spots prove Batch Q is a mixture.

Evaluate the boiling point ranges against the reference boiling point (

142.0^\circ\text{C}

Batch P (

141.8 - 142.2^\circ\text{C}

) and Batch R (

142.0 - 142.1^\circ\text{C}

) boil sharply around

142.0^\circ\text{C}

. Batch Q boils over a wide range (

138.0 - 144.5^\circ\text{C}

), and Batch S boils at an elevated temperature (

145.0 - 145.2^\circ\text{C}

Impure liquids boil over a wide temperature range or show boiling point elevation due to non-volatile impurities.

Compare the measured densities against the reference density (

1.04\text{ g cm}^{-3}

Batch P and Batch S have densities of

1.04\text{ g cm}^{-3}

, whereas Batch R has a density of

1.08\text{ g cm}^{-3}

Chemical purity requires that all physical constants, including density and refractive index, match the reference values exactly.

Synthesize the findings across all criteria to identify the single pure batch.

Only Batch P meets all three physical criteria simultaneously: narrow boiling range around

142.0^\circ\text{C}

, matching density of

1.04\text{ g cm}^{-3}

, and a single

R_f

spot at

0.45

Batch R fails on density, Batch Q fails on chromatogram spot count and boiling range, and Batch S fails on boiling point and

R_f

value.

Key Concept

Criteria of Chemical Purity for Liquids

Estimated Time:3m 0s

Question 6363Question →

Match each electrical quantity or operational scenario on the left with its corresponding mathematical expression on the right.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Electrical power in terms of current and resistance corresponds to

I^2 R

. Electrical energy consumed across voltage

V

for time

t

corresponds to

\frac{V^2 t}{R}

. Rate of heat generation in terms of voltage and current corresponds to

V I

. Total electric charge transformed corresponds to

\frac{E}{V}

Each item is matched by applying the fundamental relationships of electrical energy (

E = V I t = I^2 R t = \frac{V^2 t}{R} = Q V

) and electrical power (

P = \frac{E}{t} = V I = I^2 R = \frac{V^2}{R}

Step-by-Step Solution

Analyze the first scenario (power with current and resistance)

Power formula derived from Ohm's law (

V = IR

) into

P = VI

gives

P = (IR)I = I^2 R

Relates current and resistance directly to power dissipation.

Analyze the second scenario (energy with voltage, resistance, and time)

Energy

E = P t

. Using

P = \frac{V^2}{R}

, energy becomes

E = \frac{V^2 t}{R}

Expresses energy consumption using voltage and resistance over a given time duration.

Analyze the third scenario (rate of heat generation with voltage and current)

Rate of heat generation is power

P = V I

Direct definition of electrical power as energy converted per unit time.

Analyze the fourth scenario (charge transferred from energy and voltage)

Since potential difference is energy per unit charge (

V = \frac{E}{Q}

), rearranging gives

Q = \frac{E}{V}

Relates fundamental definitions of potential difference, energy, and charge.

Key Concept

Formulas for Electrical Energy, Power, and Charge

Question 6364Question →

Match each distillation apparatus component or process listed on the left with its correct function or application on the right.

Click a left item, then click its matching right item

Show answer & explanation

Answer

Fractionating column matches with providing a large surface area for continuous condensation/vaporisation; Liebig condenser matches with cooling hot vapor using circulating cold water; Simple distillation matches with separating liquids with widely different boiling points; Fractional distillation matches with separating miscible liquids with close boiling points.

Each item is correctly matched based on standard laboratory separation techniques: the fractionating column increases efficiency for close boiling point mixtures by providing surface area, the Liebig condenser turns vapor to liquid distillate, simple distillation separates substances with large boiling point differences, and fractional distillation resolves mixtures of miscible liquids with close boiling points.

Step-by-Step Solution

Identify the primary role of structural apparatus components

The fractionating column provides surface area for multiple equilibrium stages, while the Liebig condenser serves purely to condense vapor into liquid distillate.

Apparatus functions are based on physical design principles of distillation setups.

Differentiate between simple and fractional distillation based on boiling point criteria

Simple distillation is suitable for large boiling point differences (

>50^\circ\text{C}

), whereas fractional distillation is required for close boiling points (

<25^\circ\text{C}

Close boiling points require repeated vaporisation-condensation steps achieved only via a fractionating column.

Key Concept

Simple versus Fractional Distillation and Apparatus Functions

Estimated Time:1m 30s

Question 6365Question →

An aqueous solution containing dissolved iodine ( $I_2$ ) and sodium chloride ( $NaCl$ ) is shaken with tetrachloromethane ( $CCl_4$ , density $= 1.59\text{ g/cm}^3$ ) in a separating funnel and allowed to stand until two distinct liquid layers form. Which of the following correctly identifies the position and contents of the lower layer?

The lower layer is tetrachloromethane containing mostly dissolved iodine.

The lower layer is the aqueous solution containing dissolved sodium chloride.

The lower layer is tetrachloromethane containing mostly dissolved sodium chloride.

The lower layer is a single miscible mixture because tetrachloromethane and water separate only during fractional distillation.

Show answer & explanation

Answer: The lower layer is tetrachloromethane containing mostly dissolved iodine.

Answer

The lower layer is tetrachloromethane containing mostly dissolved iodine.

Tetrachloromethane (

CCl_4

) is immiscible with water and has a higher density (

1.59\text{ g/cm}^3

) than water (

1.00\text{ g/cm}^3

), causing it to settle at the bottom of the separating funnel. According to the principle of solute partitioning, non-polar iodine dissolves preferentially in the non-polar organic solvent (

CCl_4

), making the lower layer tetrachloromethane enriched with iodine.

Step-by-Step Solution

Determine layer placement based on density comparison.

Water has a density of

1.00\text{ g/cm}^3

, whereas tetrachloromethane (

CCl_4

) has a density of

1.59\text{ g/cm}^3

. Because

CCl_4

is denser than water and immiscible with it,

CCl_4

forms the bottom (lower) layer.

In a separating funnel, the denser immiscible liquid settles at the bottom under gravity.

Analyze solute partitioning based on solvent polarity ('like dissolves like').

Iodine (

I_2

) is non-polar and preferentially dissolves in the non-polar solvent

CCl_4

(organic layer). Sodium chloride (

NaCl

) is ionic and remains in the polar solvent

H_2O

(aqueous layer).

Solvent extraction relies on differential solubility of solutes between two immiscible liquid phases.

Combine layer position and solute content to identify the correct description.

The lower layer consists of tetrachloromethane containing the extracted iodine.

The lower organic phase contains the non-polar solute.

Key Concept

Solvent Extraction and Liquid Density Layering

Question 6366Question →

In a photoelectric effect experiment, monochromatic light with a frequency greater than the threshold frequency of a cesium metal emitter is directed at the surface. If the intensity of the incident light is doubled while keeping its frequency constant, which of the following statements is correct?

The rate of emitted photoelectrons doubles, but their maximum kinetic energy remains unchanged.

Both the maximum kinetic energy of the photoelectrons and the rate of emission double.

The maximum kinetic energy doubles, while the rate of photoelectron emission remains unchanged.

The maximum kinetic energy increases, but the rate of photoelectron emission decreases.

Show answer & explanation

Answer: The rate of emitted photoelectrons doubles, but their maximum kinetic energy remains unchanged.

Answer

The rate of emitted photoelectrons doubles, but their maximum kinetic energy remains unchanged.

According to Einstein's photoelectric equation,

K_{\text{max}} = hf - W_0

, the maximum kinetic energy of emitted photoelectrons depends strictly on the frequency of incident light and the work function of the metal emitter. Doubling light intensity at constant frequency increases the number of incident photons per second, which proportionally doubles the number of photoelectrons ejected per second (photoelectric current) without affecting their kinetic energy.

Step-by-Step Solution

Relate light intensity to the rate of incident photons.

Light intensity

I

is directly proportional to the photon flux (number of photons per unit area per unit time).

Intensity is defined by total photon energy per unit area per second (

I = N h f / (A t)

Determine the impact of intensity on the rate of photoelectron emission.

Doubling intensity doubles the number of photons hitting the surface per second, thereby doubling the photoelectron emission rate.

Photoelectric emission follows a 1-to-1 photon-to-electron collision process.

Apply Einstein's photoelectric equation to analyze kinetic energy.

The maximum kinetic energy

K_{\text{max}} = hf - W_0

remains constant.

Since frequency

f

and work function

W_0

are kept constant, the energy per photon

hf

and maximum kinetic energy

K_{\text{max}}

are unaffected by light intensity.

Key Concept

Independence of photoelectron kinetic energy from light intensity

Question 6367Question →

Which of the following is classified as a selective or qualitative instrument of monetary policy used by the Central Bank of Nigeria?

Moral suasion

Open Market Operations

Bank rate policy

Cash Reserve Ratio

Show answer & explanation

Answer: Moral suasion

Answer

Moral suasion is classified as a selective credit control instrument.

Moral suasion is a qualitative or selective monetary control mechanism where the central bank uses persuasion, advice, and informal directives to guide commercial banks' lending policies towards specific priority sectors.

Step-by-Step Solution

Classify monetary policy instruments into quantitative (general) and qualitative (selective) categories.

Quantitative tools (such as OMO, bank rate, and reserve requirements) regulate the total volume of money supply and credit in the economy.

Understanding the distinction between tools that affect overall volume versus tools that target specific credit destinations.

Identify the nature of moral suasion.

Moral suasion uses appeals, guidelines, and informal requests to direct commercial bank credit toward specific sectors or behaviors without changing general reserve ratios.

This confirms moral suasion as a selective/qualitative monetary instrument.

Key Concept

Classification of Monetary Policy Instruments (Quantitative vs Selective Controls)

Question 6368Question →

Read the unseen passage below carefully and answer the question that follows:

"The Mayor stepped onto the pristine balcony, smoothing his silk waistcoat over an expansive belly nourished by public funds. Below, the dust-choked crowd gasped as he tossed a single, polished copper coin into the squalor, declaring with a magnanimous beam, 'Behold, my beloved citizens, the fruits of our shared prosperity!' He turned to his aide with a subtle wink, satisfied that the day's benevolence had been thoroughly documented."

What is the narrator's dominant tone toward the Mayor in this passage?

Satirical and contemptuous

Awed and celebratory

Sympathetic and apologetic

Objective and detached

Show answer & explanation

Answer: Satirical and contemptuous

Answer

The narrator's dominant tone is satirical and contemptuous.

The correct option is satirical and contemptuous because the narrator uses loaded, ironical descriptions—such as detailing the Mayor's lavish lifestyle funded by public money while he tosses a tiny coin to suffering citizens—to mock and condemn his superficial generosity.

Step-by-Step Solution

Analyze narrative diction and character details

Phrases like 'belly nourished by public funds' and 'tossed a single... coin into the squalor' explicitly highlight corruption and greed.

Tone is revealed through the narrator's word choices and focal points when describing character actions.

Evaluate the relationship between dialogue and narrative commentary

The Mayor's grand declaration ('fruits of our shared prosperity') directly contradicts his minimal action and corrupt reality.

Irony occurs when spoken words contrast dramatically with actual behavior, signaling satire.

Synthesize findings to deduce overall tone

The combination of mockery, exposed hypocrisy, and disdain points directly to a satirical and contemptuous tone.

Identifying the author's underlying stance requires integrating textual evidence of ridicule.

Key Concept

Interpretation of Authorial Tone and Irony in Unseen Prose

Question 6369Question →

A business in Ondo State cuts down trees from a forest reserve, processes the raw timber into polished wooden planks at a local sawmill, and delivers the planks to furniture manufacturers. Which category of occupation does the sawmill processing activity represent?

Secondary occupation

Primary occupation

Commercial service occupation

Direct service occupation

Show answer & explanation

Answer: Secondary occupation

Answer

Secondary occupation

The secondary occupation sector encompasses all activities concerned with converting raw materials extracted from nature into semi-finished or finished products. Operating a sawmill to turn raw timber logs into polished planks is a manufacturing/processing operation, making secondary occupation the correct classification.

Step-by-Step Solution

Identify the specific activity highlighted in the stem

The activity is processing raw timber into polished wooden planks at a sawmill.

The question specifically asks about the sawmill processing operation rather than the initial tree felling or transport.

Classify the activity into the appropriate occupational sector

Sawmilling transforms a raw natural material (logs) into semi-finished or finished goods (polished planks).

Occupations that involve manufacturing, construction, or processing of raw materials belong to the secondary sector.

Key Concept

Classification of Occupations (Primary, Secondary, Tertiary)

Question 6370Question →

A commercial enterprise in Ghana imports raw timber from Liberia, stores it temporarily in a free port warehouse without paying local customs duties, and subsequently exports the timber to a furniture manufacturer in the United Kingdom. Which type of international trade is being conducted by the Ghanaian firm?

Bilateral trade

Entrepôt trade

Counter-trade

Multilateral trade

Show answer & explanation

Answer: Entrepôt trade

Answer

Entrepôt trade

Entrepôt trade (also known as re-export trade) occurs when a country imports goods from one foreign nation with the intent to export them to another foreign nation, often using free trade zones or bonded warehouses to defer or avoid local customs duties.

Step-by-Step Solution

Analyze the trade scenario described in the question stem

Goods are imported from one nation (Liberia) into a intermediate nation (Ghana) and subsequently exported to a third nation (United Kingdom) without undergoing local processing or customs duty payment.

Identifying the key operations (importing followed by re-exportation without duty/transformation) defines the specific category of foreign trade.

Match the trade operations with standard foreign trade definitions

The practice of importing merchandise into a duty-free port or warehouse for the sole purpose of re-exporting it to another destination is classified as entrepôt trade (re-export trade).

Entrepôt trade acts as a distribution hub for international goods moving between primary producers and ultimate buyers.

Key Concept

Entrepôt Trade / Re-export Trade

Estimated Time:1m 0s

Question 6371Question →

Read the excerpt below:

"The ancient, decaying castle stood isolated on the craggy cliff, enveloped in a thick, perpetual fog. Inside its subterranean corridors, hollow whispers echoed along the cold stone walls, stirring an uncanny sense of foreboding in anyone who dared enter."

Which prose subgenre is primarily characterized by the setting, gloomy atmosphere, and eerie mood presented in the passage?

Gothic fiction

Historical fiction

Allegorical prose

First-person memoir

Show answer & explanation

Answer: Gothic fiction

Answer

Gothic fiction

Gothic fiction is a prose subgenre defined by mysterious, ominous settings—such as haunted or decaying castles, dark passages, and fog—alongside an atmosphere of dread and suspense, exactly as shown in the excerpt.

Step-by-Step Solution

Analyze the setting and mood presented in the excerpt

The text highlights elements such as an ancient decaying castle, fog, subterranean corridors, hollow whispers, and an uncanny sense of foreboding.

Identifying atmospheric keywords reveals the primary stylistic focus of the narrative.

Match the identified elements to defining traits of prose subgenres

Combining architectural decay, eerie isolation, and sinister mystery is the hallmark of Gothic prose fiction.

Gothic fiction specifically uses dark, menacing environments to evoke suspense, fear, and horror.

Key Concept

Characteristics of Gothic Fiction in Prose

Question 6372Question →

Read the prose extract below:

"In the quiet chaos of the market square, Chief Ebuka walked with an agonizing pleasure, knowing that his long-awaited chieftaincy victory had cost him the loyalty of his only son."

Which literary device is prominently demonstrated in the expressions "quiet chaos" and "agonizing pleasure"?

Oxymoron

Paradox

Metaphor

Antithesis

Show answer & explanation

Answer: Oxymoron

Answer

The correct literary device is oxymoron.

The correct answer is oxymoron because both phrases ("quiet chaos" and "agonizing pleasure") pair two contradictory or antonymous words directly beside each other to emphasize intense emotional and situational complexity.

Step-by-Step Solution

Analyze the target expressions in the prose extract

Identified two specific phrases: "quiet chaos" and "agonizing pleasure".

Examining word relationships is essential for categorizing figurative devices.

Evaluate the semantic relationship between words in each phrase

"Quiet" directly contradicts "chaos", and "agonizing" directly contradicts "pleasure".

Determining if words are paired opposites establishes whether side-by-side contradiction is present.

Distinguish oxymoron from adjacent figures of speech

Because contradictory terms are juxtaposed directly next to each other within two-word phrases, the figure of speech is specifically an oxymoron rather than a full-sentence paradox.

Oxymoron applies to compressed, side-by-side word pairings.

Key Concept

Oxymoron in Prose Style

Estimated Time:1m 30s

Question 6373Question →

A Nigerian cocoa exporter entering into a contract with a new buyer in the United Kingdom seeks to eliminate credit risk by ensuring that a reputable bank guarantees payment upon presentation of specified shipping documents, rather than relying strictly on the buyer's creditworthiness. Which instrument of foreign payment fulfills this condition, and what is its main feature?

An Irrevocable Letter of Credit, because the issuing bank undertakes a binding commitment to pay the exporter upon presentation of compliant shipping documents.

A Bill of Lading, because it functions as an unconditional bank guarantee that automatically settles foreign trade debts upon shipment.

A Sight Bill of Exchange, because it directly adjusts national balance of payments reserves to guarantee private trade transactions.

A Certificate of Origin, because it provides legal assurance of bank settlement while confirming customs tariff classifications.

Show answer & explanation

Answer: An Irrevocable Letter of Credit, because the issuing bank undertakes a binding commitment to pay the exporter upon presentation of compliant shipping documents.

Answer

An Irrevocable Letter of Credit, because the issuing bank undertakes a binding commitment to pay the exporter upon presentation of compliant shipping documents.

An Irrevocable Letter of Credit is issued by an importer's bank and provides an independent, legally binding guarantee to pay the exporter upon presentation of strictly compliant shipping documents. This transfers the credit risk from the buyer to the issuing bank.

Step-by-Step Solution

Identify the exporter's requirement in international trade.

The exporter needs a payment mechanism where a financial institution (bank) guarantees payment upon document presentation to eliminate buyer default risk.

Trading with a new overseas buyer involves credit and political risk, requiring third-party bank security.

Evaluate the payment instruments against document-of-title shipping documents.

Letters of Credit substitute the creditworthiness of the buyer's bank for the buyer, guaranteeing payment against compliant shipping documents.

Shipping documents such as the Bill of Lading or Certificate of Origin support the transaction, but are not payment guarantees themselves.

Distinguish commercial instruments from macroeconomic trade metrics.

Balance of Payments is a statistical record of all economic transactions between residents of a country and the rest of the world, not an individual payment instrument.

Individual payment methods settle specific commercial contracts rather than adjusting macro reserves directly.

Key Concept

Letter of Credit as a Payment Guarantee in Foreign Trade

Question 6374Question →

Which of the following functions is performed by a wholesaler directly to a manufacturer?

Providing market feedback on consumer preferences and demand trends

Breaking bulk into smaller quantities for retail distribution

Issuing a credit note to rectify an overcharge on a trade invoice

Eliminating the requirement for transport and warehousing services in commerce

Show answer & explanation

Answer: Providing market feedback on consumer preferences and demand trends

Answer

Providing market feedback on consumer preferences and demand trends

Providing market feedback on consumer preferences and demand trends is a direct service rendered to manufacturers. By interacting closely with retailers, wholesalers gather vital market data that helps manufacturers adjust output and improve product designs.

Step-by-Step Solution

Identify the recipient of the wholesale service

The target recipient specified in the stem is the manufacturer.

Wholesalers serve two major distinct groups in the distribution channel: manufacturers (producers) and retailers.

Analyze wholesaler functions to manufacturers

Wholesalers collect market intelligence from retailers and consumers regarding trends, complaints, and changes in demand, and relay this information to manufacturers.

This information allows manufacturers to plan production schedules effectively and adjust product specifications.

Key Concept

Functions of Wholesalers to Manufacturers

Question 6375Question →

Under the organizational framework of the Economic Community of West African States (ECOWAS), which principal organ functions as the supreme authority responsible for giving general policy directives and supervising the overall implementation of Community goals?

The Authority of Heads of State and Government

The Council of Ministers

The ECOWAS Commission

The Community Court of Justice

Show answer & explanation

Answer: The Authority of Heads of State and Government

Answer

The Authority of Heads of State and Government

The Authority of Heads of State and Government is the highest organ of ECOWAS. It is composed of the leaders of all member states and is constitutionally charged with directing, controlling, and establishing general policies for the entire West African community.

Step-by-Step Solution

Identify the institutional hierarchy of ECOWAS organs.

ECOWAS has several main organs including the Authority of Heads of State and Government, the Council of Ministers, the ECOWAS Commission, the Community Parliament, and the Community Court of Justice.

Understanding the division of powers within regional organizations is essential for evaluating governance responsibility.

Determine which organ holds supreme policy-making and directive power under the ECOWAS Treaty.

Article 7 of the Revised ECOWAS Treaty designates the Authority of Heads of State and Government as the supreme institution of the Community.

Member state leaders retain ultimate policy authority over regional decisions.

Key Concept

Supreme Decision-Making Body of ECOWAS

Question 6376Question →

Ade operates a small retail enterprise as a sole proprietor in Ibadan. If the business fails and its total liabilities exceed its business assets, which of the following best describes Ade's legal obligation to his creditors?

He is personally liable for all outstanding debts, meaning his private assets can be seized to settle creditors.

His financial liability is strictly limited to the capital he originally invested in the retail shop.

Creditors can only claim assets registered directly under the business name.

The outstanding debts are automatically transferred to government regulatory agencies upon business liquidation.

Show answer & explanation

Answer: He is personally liable for all outstanding debts, meaning his private assets can be seized to settle creditors.

Answer

He is personally liable for all outstanding debts, meaning his private assets can be seized to settle creditors.

A fundamental feature of a sole proprietorship is unlimited liability. Because the business is not incorporated, it lacks a separate legal personality from its owner. Therefore, if business assets fall short of meeting outstanding debts, the owner is legally bound to settle remaining liabilities using personal assets.

Step-by-Step Solution

Identify the key feature of a sole proprietorship regarding business liabilities.

A sole trader has unlimited liability because there is no legal separation between the owner and the business.

The law views the sole proprietor and the business as a single legal entity.

Determine the practical impact of unlimited liability when business assets are insufficient to cover debts.

The owner's personal property (such as personal savings, vehicle, or personal belongings) can be used to pay off creditors.

Creditors have full legal recourse against the owner's personal estate.

Key Concept

Unlimited Liability in Sole Proprietorship

Estimated Time:45s

Question 6377Question →

Which of the following structural features distinguishes the executive arm in a parliamentary system of government from that in a presidential system?

The executive is fused with the legislature and operates on the principle of collective cabinet responsibility.

The executive is led by a single individual who combines the roles of Head of State and Head of Government.

The executive cabinet members are constitutionally prohibited from holding parliamentary seats.

The executive head enjoys a fixed constitutional tenure and can only be removed through impeachment.

Show answer & explanation

Answer: The executive is fused with the legislature and operates on the principle of collective cabinet responsibility.

Answer

The executive is fused with the legislature and operates on the principle of collective cabinet responsibility.

In a parliamentary executive system, the executive branch is drawn directly from the legislature (fusion of powers) and remains accountable to it through collective cabinet responsibility. The prime minister and cabinet must maintain the confidence of the legislative body to stay in office.

Step-by-Step Solution

Analyze the structural relationship between the executive and legislative organs in a parliamentary system.

In a parliamentary system, members of the executive cabinet are drawn directly from the elected members of the legislature, creating a fusion of executive and legislative powers.

This fusion is fundamental to parliamentary governance, contrasting with the strict constitutional separation of powers in presidential systems.

Examine the operational principle of executive accountability in parliamentary systems.

The cabinet operates under collective responsibility, meaning all ministers share public responsibility for government decisions and must resign together if a vote of no confidence passes.

This contrasts with presidential systems where the executive president holds independent authority and separate tenure.

Key Concept

Executive-Legislative Fusion and Collective Responsibility in Parliamentary Systems

Estimated Time:1m 0s

Question 6378Question →

A customer deposits $\text{N}50,000$ in cash into a commercial bank. If this initial deposit results in a total credit expansion of $\text{N}250,000$ throughout the commercial banking system, what is the Cash Reserve Ratio mandated by the central bank?

20\%

5\%

25\%

80\%

Show answer & explanation

Answer: $20\%$

Answer

The Cash Reserve Ratio mandated by the central bank is

20\%

The relationship between total credit expansion, initial cash deposit, and the Cash Reserve Ratio (CRR) is expressed as

\text{Total Expansion} = \frac{\text{Initial Deposit}}{\text{CRR}}

. Rearranging to isolate the CRR gives

\text{CRR} = \frac{\text{N}50,000}{\text{N}250,000} = 0.20

, which translates to

20\%

Step-by-Step Solution

Recall the credit expansion formula relating Total Credit Expansion, Initial Cash Deposit, and Cash Reserve Ratio (CRR).

\text{Total Credit Expansion} = \frac{\text{Initial Cash Deposit}}{\text{Cash Reserve Ratio}}

Commercial bank credit creation operates as the inverse of the cash reserve requirement.

Rearrange the credit expansion formula to solve for the Cash Reserve Ratio.

\text{Cash Reserve Ratio} = \frac{\text{Initial Cash Deposit}}{\text{Total Credit Expansion}}

To find the reserve fraction, the initial deposit is divided by the maximum secondary deposit expansion.

Substitute

\text{N}50,000

for the Initial Cash Deposit and

\text{N}250,000

for the Total Credit Expansion into the equation.

\text{Cash Reserve Ratio} = \frac{50,000}{250,000} = 0.20 = 20\%

Performing the division yields

0.20

, which converts to

20\%

Key Concept

Credit Multiplier and Cash Reserve Ratio Relationship

Question 6379Question →

An integrated agribusiness enterprise operating in Nigeria harvests oil palm fruits from its plantation, processes the fruit into refined cooking oil at its factory, and engages a logistics firm to transport and market the final product to retail distributors. Which of the following accurately identifies the sequence of economic production sectors represented by these three stages?

Primary sector, secondary sector, and tertiary sector (commercial services)

Primary sector, primary sector, and secondary sector

Secondary sector, secondary sector, and tertiary sector (direct services)

Primary sector, secondary sector, and tertiary sector (direct services)

Show answer & explanation

Answer: Primary sector, secondary sector, and tertiary sector (commercial services)

Answer

The correct sequence is Primary sector (agricultural harvesting), Secondary sector (factory refining/processing), and Tertiary sector via commercial services (freight transportation and distribution).

Agricultural harvesting extracts raw materials from nature (Primary), factory refining converts raw materials into consumable commodities (Secondary), and freight logistics and marketing distribute goods to market intermediaries (Commercial Tertiary Services).

Step-by-Step Solution

Analyze Stage 1 (Harvesting palm fruit from plantation)

Identified as Primary Sector

Primary production involves extraction or collection of raw natural resources directly from nature (agriculture/forestry).

Analyze Stage 2 (Processing fruit into refined cooking oil at factory)

Identified as Secondary Sector

Secondary production transforms raw materials into finished or semi-finished usable goods through manufacturing and processing.

Analyze Stage 3 (Transporting and marketing cooking oil to retailers)

Identified as Tertiary Sector (Commercial Services)

Tertiary production facilitates the distribution of goods from producers to consumers. Since transport and trading aid commerce, they fall under commercial tertiary services rather than personal/direct services.

Key Concept

Classification of Production Sectors and Inter-sectoral Linkages

Question 6380Question →

Following the recommendations of the 1958 Willink Commission to allay the fears of ethnic minority groups regarding majoritarian dominance in the regions, which key provision was formally entrenched in the 1960 Independence Constitution of Nigeria?

A comprehensive chapter on Fundamental Human Rights

The designated role of the Federal Supreme Court as the final court of appeal

A unicameral federal legislature with equal representation for all ethnic groups

The absolute executive authority of the Prime Minister to dissolve regional assemblies at will

Show answer & explanation

Answer: A comprehensive chapter on Fundamental Human Rights

Answer

A comprehensive chapter on Fundamental Human Rights entrenched in the constitution.

The Willink Commission of 1958 was tasked with addressing the anxieties of minority groups in Nigeria. To alleviate these concerns without creating new regions prior to independence, the 1960 Independence Constitution incorporated an entrenched and justiciable chapter on Fundamental Human Rights, guaranteeing civil and political liberties to all citizens.

Step-by-Step Solution

Identify the historical context and objective of the Willink Commission (1958).

The Willink Commission was appointed to investigate minority fears of regional political domination by majority groups prior to independence.

Understanding the problem the commission sought to solve leads to the specific constitutional remedy adopted.

Examine the constitutional outcome of the commission's recommendations in the 1960 Independence Constitution.

Rather than creating new states, the commission recommended incorporating explicit constitutional safeguards, resulting in a comprehensive, justiciable Chapter on Fundamental Human Rights.

This constitutional inclusion ensured legal protection for rights such as freedom of speech, assembly, and movement across all regions.

Key Concept

Entrenchment of Fundamental Human Rights in the 1960 Independence Constitution

Estimated Time:1m 0s

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