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Question

Difficulty: HardComprehending Explicit Comparisons and Contrasts

Passage:
The Renaissance saw a technical divergence between two wall-painting techniques: buon fresco (true fresco) and fresco secco (dry fresco). Buon fresco required the artist to apply pigment mixed with water directly onto wet, freshly laid lime plaster. Through a chemical reaction known as carbonation, the pigment particles became chemically locked within the curing plaster, making the painting an integral part of the wall itself. This process demanded rapid execution because the painting had to be completed before the plaster dried. Fresco secco, by contrast, involved applying pigments mixed with an organic binder (such as egg or glue) onto dry, cured plaster. While fresco secco allowed for a broader range of pigments and a more leisurely pace, it lacked the durability of buon fresco, as the paint layer remained a superficial crust susceptible to flaking over time.

Based on the passage, how does the integration of pigments in buon fresco explicitly contrast with that of fresco secco?

  1. Buon fresco pigments are mixed with water and become chemically locked within wet plaster, whereas fresco secco pigments are mixed with an organic binder to form a surface layer on dry plaster.Answer
  2. B
    Buon fresco pigments rely on an organic binder to adhere to the plaster, whereas fresco secco pigments are integrated into wet plaster through the process of carbonation.
  3. C
    Buon fresco pigments form a superficial crust that is chemically locked over time, whereas fresco secco pigments are absorbed beneath dry plaster during execution.
  4. D
    Buon fresco pigments remain highly susceptible to flaking due to rapid execution, whereas fresco secco pigments achieve lasting durability on cured walls.

Answer

Buon fresco pigments are mixed with water and become chemically locked within wet plaster, whereas fresco secco pigments are mixed with an organic binder to form a surface layer on dry plaster.
The correct answer accurately reflects the explicit details and contrasts stated in the passage. The author describes buon fresco as applying pigment mixed with water to wet plaster, causing it to become chemically locked within. In contrast, fresco secco is described as applying pigments mixed with an organic binder to dry plaster, which leaves a superficial paint layer on the surface.

Step-by-Step Solution

1
Locate the description of buon fresco in the passage.
The passage states that buon fresco requires applying pigment mixed with water onto wet plaster, which chemically locks the pigment in through carbonation.
To identify how buon fresco pigments integrate with the wall.
2
Locate the description of fresco secco in the passage.
The passage states that fresco secco involves applying pigments mixed with an organic binder onto dry, cured plaster, resulting in a superficial paint layer that is susceptible to flaking.
To identify how fresco secco pigments integrate with the wall.
3
Compare the two processes to find the explicit contrast.
The contrast lies in the plaster state (wet vs. dry), the mixing medium (water vs. organic binder), and the integration method (chemically locked within vs. superficial surface layer). The option describing buon fresco pigments as mixed with water and chemically locked within wet plaster, and fresco secco pigments as mixed with an organic binder on dry plaster, matches this comparison exactly.
To determine the correct option based on the explicit differences detailed in the text.

Key Concept

Comprehending Explicit Comparisons and Contrasts
Estimated Time:2m 0s
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Topics

Comprehending Explicit Comparisons and Contrasts

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