Nursing Elites

1. Which of the following is an example of an aromatic compound?

• A. Ethanol
• B. Toluene
• C. Acetone
• D. Butanal

Correct answer: B

Rationale: Toluene is an aromatic compound due to its benzene ring structure, which satisfies the criteria of aromaticity. Aromatic compounds contain conjugated pi electrons in a ring structure, providing extra stability. Ethanol, acetone, and butanal are not aromatic compounds as they do not possess a benzene ring or meet the aromaticity criteria. Ethanol is an alcohol, acetone is a ketone, and butanal is an aldehyde, none of which have the characteristic benzene ring structure of aromatic compounds.

2. Select the correct verb to complete the following sentence: Our family _____________ staying home for the holidays this year.

• A. is
• B. be
• C. am
• D. are

Correct answer: A

Rationale: The correct answer is 'A: is.' In the sentence, 'Our family is staying home for the holidays this year,' the singular collective noun 'family' requires a singular verb to maintain subject-verb agreement. 'Is' is the correct singular form of the verb to match with 'family.' Choice B 'be' is incorrect as it is the base form of the verb and does not agree with the subject 'family.' Choice C 'am' is incorrect as it is a first-person singular form of the verb 'to be,' which does not align with the subject 'family.' Choice D 'are' is incorrect as it is a plural form of the verb and does not match with the singular subject 'family.'

3. Convert 0.1 liter to milliliters. What is the equivalent volume?

• A. 1 ml
• B. 10 ml
• C. 100 ml
• D. 1000 ml

Correct answer: C

Rationale: To convert liters to milliliters, you need to multiply the number of liters by 1,000 because there are 1,000 milliliters in a liter. Therefore, 0.1 liter is equal to 100 milliliters. Choice A (1 ml) is incorrect because it represents the conversion of 0.01 liters, not 0.1 liters. Choice B (10 ml) is incorrect as it also represents the conversion of 0.01 liters. Choice D (1000 ml) is incorrect as it represents the conversion of 1 liter, not 0.1 liter.

4. Which vitamin is crucial for calcium absorption and synthesized in the skin upon sun exposure?

• A. Vitamin A
• B. Vitamin C
• C. Vitamin D
• D. Vitamin E

Correct answer: C

Rationale: The correct answer is Vitamin D. Vitamin D is essential for calcium absorption as it helps regulate calcium and phosphorus levels in the body. When the skin is exposed to sunlight, UVB rays convert a compound in the skin to vitamin D. This vitamin is vital for maintaining bone health and ensuring the overall calcium balance in the body. Choices A, B, and D are incorrect. Vitamin A is important for vision and immune function, Vitamin C is essential for collagen synthesis and immune function, and Vitamin E is an antioxidant that helps protect cells from damage by free radicals. However, none of these vitamins are primarily responsible for calcium absorption and synthesized in the skin upon sun exposure.

5. Which of the following choices shows the best chronological order for the sentences within the paragraph?

• A. IV, II, I, III
• B. III, IV, II, I
• C. I, II, III, IV
• D. III, I, IV, II

Correct answer: C

Rationale: The correct chronological order for the sentences within a paragraph should follow the sequence of events logically. In this case, 'I, II, III, IV' is the correct order. Sentence I usually sets the stage or introduces the main idea, followed by sentence II, which provides additional information. Sentence III usually presents the climax or a turning point, leading to sentence IV, which wraps up the paragraph. Choice C, 'I, II, III, IV,' maintains this logical progression, making it the best chronological order. Choices A, B, and D do not follow a coherent chronological sequence and disrupt the flow of events within the paragraph.

Similar Questions