Nursing Elites

1. Which of the following reagents can be used to convert a primary alcohol to an alkyl halide?

• A. HI
• B. H2O
• C. NaOH
• D. SOCl2

Correct answer: D

Rationale: SOCl2 (thionyl chloride) is commonly used to convert primary alcohols to alkyl halides through an SN2 mechanism. Thionyl chloride reacts with the alcohol to form an alkyl chloride. HI (hydroiodic acid) is typically used to convert alcohols to alkyl iodides specifically, not alkyl halides in general. H2O (water) and NaOH (sodium hydroxide) are not reagents used for converting alcohols to alkyl halides. Therefore, the correct answer is SOCl2 as it facilitates the conversion of primary alcohols to alkyl halides, unlike the other options provided.

2. What is the building block of DNA?

• A. Amino acid
• B. Nucleotide
• C. Phosphate group
• D. Fatty acid

Correct answer: B

Rationale: - Amino acids are the building blocks of proteins, not DNA. - Nucleotide is the correct building block of DNA. A nucleotide consists of a sugar (deoxyribose in DNA), a phosphate group, and a nitrogenous base (adenine, thymine, cytosine, or guanine). - The option 'C) Phosphate group' is incorrect as it is only part of a nucleotide, not the complete building block of DNA. - Fatty acids are not the building blocks of DNA; they are a type of lipid molecule.

3. Which sentence uses parallel structure correctly?

• A. I enjoy reading, watching movies, and spending time with friends.
• B. Reading, watching movies, and spending time with friends are all activities I enjoy.
• C. I like to read, watch movies, and spend time with friends.
• D. Reading, movies, and friends are all things I enjoy.

Correct answer: B

Rationale: Parallel structure means using the same grammatical form for elements in a list. Option (B) uses parallel gerunds ('reading,' 'watching,' 'spending'), making it the correct choice. The other options have inconsistencies in the form of the listed activities, making them grammatically incorrect. Option (A) starts with 'I enjoy' but then switches to '-ing' verbs. Option (C) changes from 'like' to '-ing' verbs, breaking parallelism. Option (D) lists 'reading' correctly but then switches to singular nouns ('movies,' 'friends'), which is not parallel.

4. Based upon the contextual evidence provided in the passage above, what is the meaning of the term 'enterprise' in the third paragraph?

• A. Company
• B. Courage
• C. Game
• D. Cause

Correct answer: A

Rationale: 'Enterprise' here refers to a company or organization, particularly one that requires effort and initiative. In the passage, the term 'enterprise' is used in the context of establishing a Mechanic's Institution, emphasizing the involvement and support of the working man in such an organization. Choice B, 'Courage,' is incorrect as the term refers more to determination and initiative in creating and supporting the institution rather than bravery. Choice C, 'Game,' and choice D, 'Cause,' are also incorrect as they do not align with the context provided in the passage.

5. Veronica decided to celebrate her promotion by purchasing a new car. The base price for the car was $40,210. She paid an additional $3,015 for a surround sound system and $5,218 for a maintenance package. What was the total price of Veronica’s new car?

• A. $50,210
• B. $48,443
• C. $43,225
• D. $40,210

Correct answer: B

Rationale: To find the total price of Veronica's new car, add the base price, the cost of the surround sound system, and the cost of the maintenance package. Calculation: $40,210 (base price) + $3,015 (sound system) + $5,218 (maintenance package) = $48,443. Therefore, the correct answer is $48,443. Choice A, $50,210, is incorrect as it does not include the maintenance package cost. Choice C, $43,225, is incorrect as it only considers the base price and the maintenance package but omits the sound system cost. Choice D, $40,210, is the base price alone and does not account for the additional costs of the sound system and maintenance package.

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