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Historically, soap has been by treating animal or vegetable oils wit
[#permalink]
23 May 2023, 02:14
23 May 2023, 02:14
Expert Reply
00:00
Question Stats:
80% (00:39) correct
20% (00:36) wrong based on 45 sessions
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Historically, soap has been ________ by treating animal or vegetable oils with a strong base, such as sodium hydroxide, to create a form of lipid with hydrophobic “tails,” which surround oil and other particles, and hydrophilic “heads,” which attract water molecules.
| Two Answers |
|---|
| A. manufactured |
| B. enhanced |
| C. improved | D. produced | E. ameliorated |
| F. undermined |
Re: Historically, soap has been by treating animal or vegetable oils wit
[#permalink]
25 May 2023, 04:00
25 May 2023, 04:00
Expert Reply
OE
A, D Perhaps you weren’t expecting a chemistry lesson, but this question provides it. Don’t let the unfamiliar content distract you; instead, focus on the clues. You need a verb in the blank: what have people historically done to soap? The best clues are “treating” and “to create.” These words indicate that people made soap with this process. Both (A) manufactured and (D) produced match this meaning and are the correct answers. (B) enhanced and (C) improved are synonyms but do not match the clues in the sentence: there is nothing to indicate that soap was once an inferior product and needed improving. (E) ameliorated means “to make a bad situation more tolerable” and is not supported by the clues in the sentence. Finally, there’s no suggestion in this sentence that people (F) undermined soap; instead, they used this process to create it.
A, D Perhaps you weren’t expecting a chemistry lesson, but this question provides it. Don’t let the unfamiliar content distract you; instead, focus on the clues. You need a verb in the blank: what have people historically done to soap? The best clues are “treating” and “to create.” These words indicate that people made soap with this process. Both (A) manufactured and (D) produced match this meaning and are the correct answers. (B) enhanced and (C) improved are synonyms but do not match the clues in the sentence: there is nothing to indicate that soap was once an inferior product and needed improving. (E) ameliorated means “to make a bad situation more tolerable” and is not supported by the clues in the sentence. Finally, there’s no suggestion in this sentence that people (F) undermined soap; instead, they used this process to create it.
gmatclubot
Re: Historically, soap has been by treating animal or vegetable oils wit [#permalink]
25 May 2023, 04:00
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