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Difficulty: HardSelecting Concluding Sentences and Transitions

William Henry Perkin and the Dawn of Synthetic Chemistry

In 1856, eighteen-year-old chemist William Henry Perkin was attempting to synthesize quinine, a valuable treatment for malaria, in his home laboratory. Instead of obtaining the clear drug, his experiments resulted in a dark, sludge-like residue. Rather than discarding the failed mixture, Perkin investigated further and discovered that rinsing the sludge with alcohol produced a vibrant purple solution. This accidental substance was mauveine, the world’s first synthetic aniline dye. Prior to Perkin’s breakthrough, purple dye had to be painstakingly harvested from thousands of Mediterranean sea snails, making purple clothing a luxury reserved strictly for royalty and the ultra-wealthy. [1]

He patented the manufacturing process and established a factory to mass-produce the dye, effectively launching the modern chemical industry. Demand soared as European royalty, including Queen Victoria, began wearing mauve garments. By turning a laboratory mishap into a global enterprise, Perkin transformed both the fashion world and the field of industrial chemistry.

Given that all the choices are true, which choice, if inserted at [1], provides the most logical and effective transition from the first paragraph to the second paragraph?

  1. Perkin realized that his synthetic dye could democratize this coveted hue, transforming it from a rare luxury into an affordable commodity.Answer
  2. B
    Perkin decided to capitalize on the discovery, he immediately began planning a manufacturing facility.
  3. C
    Although his original experiment failed, Perkin shifts his attention to the dye's potential in the textile market.
  4. D
    Consequently, the price of Mediterranean sea snails fluctuated wildly, making it difficult for local merchants to predict their annual profits.

Answer

Perkin realized that his synthetic dye could democratize this coveted hue, transforming it from a rare luxury into an affordable commodity.
The correct option logically bridges the two paragraphs. It connects the 'rare luxury' of natural purple dye (mentioned at the end of the first paragraph) to the concept of 'democratizing' it as an 'affordable commodity,' which sets up the second paragraph's discussion of patenting the process and mass-producing the dye. It is grammatically correct and maintains a consistent past tense.

Step-by-Step Solution

1
Analyze the surrounding context of the transition point [1].
The preceding sentence discusses the high cost and exclusivity of natural purple dye ('a luxury reserved strictly for royalty and the ultra-wealthy'). The following paragraph discusses the commercialization and mass production of the synthetic dye ('He patented the manufacturing process and established a factory...').
An effective transition must bridge these two distinct concepts.
2
Evaluate the options for logical relevance and transition strength.
The correct option connects 'rare luxury' to 'affordable commodity,' linking the exclusivity of purple to the subsequent factory mass-production. Other options introduce irrelevant details or lack a logical connection.
The transition should flow smoothly without bringing in unsupported ideas.
3
Check the remaining options for grammatical correctness and consistency.
One option contains a comma splice (joining two independent clauses with only a comma). Another option shifts from the past tense of the passage to the present tense ('shifts').
Standardized test questions require the correct choice to be both stylistically effective and grammatically correct.

Key Concept

Selecting Concluding Sentences and Transitions
Estimated Time:1m 0s
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Topics

Selecting Concluding Sentences and Transitions

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