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28 Jul 2021, 06:30
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A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
95%
(hard)
Question Stats:
48% (02:21) correct
52%
(02:20)
wrong
based on 374
sessions
History
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Time
Result
Not Attempted Yet
Though universally popular and worn every day by women around the world, perfume is known to have several potentially serious health risks. The majority of perfumes contain chemicals such as ethyl acetate and acetone, both of which are recognized as respiratory allergens. At the same time, the majority of allergic reactions to perfumes manifest themselves in skin irritations and in some cases severe, topical problems. Linalool, a suspected skin allergen, is a perfume ingredient, but it is almost never used in the form that causes topical reactions in perfume wearers.
Which of the following helps to resolve the apparent conflict between the chemical ingredients of perfume and the manifestation of skin allergies?
(A) The inhalation of chemicals that are frequently used in perfumes can cause skin irritation.
(B) Scientists have recently discovered a chemical combination that will enable perfume makers to use non-allergenic ingredients.
(C) When combined with antioxidants, linalool does not manifest itself as a skin allergen in perfumes.
(D) Very few people are actually allergic to perfume, so severe allergic reactions to perfume are rare.
(E) Most perfumes contain either ethyl acetone or acetate, but not both in combination.
Which of the following helps to resolve the apparent conflict between the chemical ingredients of perfume and the manifestation of skin allergies?
(A) The inhalation of chemicals that are frequently used in perfumes can cause skin irritation.
(B) Scientists have recently discovered a chemical combination that will enable perfume makers to use non-allergenic ingredients.
(C) When combined with antioxidants, linalool does not manifest itself as a skin allergen in perfumes.
(D) Very few people are actually allergic to perfume, so severe allergic reactions to perfume are rare.
(E) Most perfumes contain either ethyl acetone or acetate, but not both in combination.
31 Jul 2021, 06:30
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Bunuel
OFFICIAL EXPLANATION
Overview:
In this question, the student is given information about the potential health and environmental risks of perfume. The author of the passage claims that perfume contains chemicals that are known to be allergens. These allergens can cause various topical reactions, both minor and severe. The passage concludes with a comment that the chemical linalool is frequently used in perfume and is also known to be a skin allergen but that perfume manufacturers seldom use it in the form that causes direct topical reactions. The question then asks for the student to determine the answer choice that best explains this anomaly: linalool, which causes topical reactions in perfume wearers, is not used in the form that does cause topical reactions. This question might sound confusing at first, but there really is only one possible explanation for why an ingredient known for topical reactions upon application, in a certain form, can cause topical reactions when it is not in that form. The student needs to bear in mind that perfume, by its nature, is applied topically as an inhalant. Even though the passage mentions the topical qualities of perfume several times, there is no mention of reactions caused from inhalation of perfume. This should suggest to the student that the correct answer will provide some explanation of allergic—and likely topical—reactions from inhaling perfume.
The Correct Answer:
A As discussed in the Overview, the correct answer provides a clear link between the inhalation of perfumes (and the chemicals that are contained within them) and the topical reactions that some people have from perfumes—in spite of the fact that the chemicals are not necessarily supposed to create topical reactions. Answer choice (A) is correct.
The Incorrect Answers:
B Answer choice (B) is interesting but largely irrelevant. The passage is not focused on the potential for nonallergic reactions from perfume ingredients in the future, but rather on the current reactions from certain ingredients. Answer choice (B) cannot be correct.
C Again, answer choice (C) is interesting, but it does little to explain the problem of topical reactions from ingredients that are not supposed to cause topical reactions in certain forms. Answer choice (C) functions primarily as a red herring, so it should be eliminated.
D Answer choice (D) ignores the situation discussed in the passage and the question: while many people might not have allergic reactions, some people do. And question 21 is concerned with those who do. Answer choice (D) cannot be correct.
E Both ethyl acetone and acetate are mentioned in the passage, but answer choice (E) does not offer any clear explanation about how the mention of them in this answer choice links them to the question that has been asked. Answer choice (E) is also irrelevant and must be eliminated.
General Discussion
10 Dec 2025, 15:01
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