Multiple Choice (50 points; 5 points each) Piease provide your answers on the Sc

Question

Multiple Choice (50 points; 5 points each) Piease provide your answers on the Scantron 1. In the following reaction, what happens to each of the reactants? Ag20 silver mirror Aldehyde is reduced Silver is reduced Aldehyde is oxidized Silver is reduced Aldehyde is oxidized Silver is oxidized Aldehyde is reduced Silver is oxidized 2. What is the nucleophile in the following reaction? NaBH OH THF, H2O ketone sodium borohydride water alcohol THF 3. Which of the following best describes DIBAL-H? Lewis Acid Lewis Base Ylide Oxidant Grignard

Explanation / Answer

1. Option B, since it is an example for oxidation of aldehyde by Tollens reagent. Silver gets reduced and aldehyde gets oxidized.

2. Option B, sodium borohydride, it releases Hydride ion

3. Option B, Lewis base, it is a reducing agent and releases Hydride ion hence lewis base.

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