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NEET 2023 Phase 2 · ChemistryDerivative reactivityPrevious Year Question

Reagents which can be used to convert alcohols to carboxylic acids are: (A) (B) (C) / (D) , 573 K (E) , Choose the most appropriate answer:

Answer: (A) (A) (A), (B) and (C) only. \textbf{Answer:} (A) (A), (B) and (C) only \textbf{Solution:} Primary alcohols are oxidised all the way to carboxylic acids by strong oxidants: (Jones reagent), acidified , and alkaline with acidic work-up.

  1. A.(A) (A), (B) and (C) only✓
  2. B.(B) (A), (B) and (E) only
  3. C.(C) (B), (C) and (D) only
  4. D.(D) (B), (D) and (E) only

Correct Answer

(A) (A) (A), (B) and (C) only

Solution & Explanation

\textbf{Answer:} (A) (A), (B) and (C) only \textbf{Solution:} Primary alcohols are oxidised all the way to carboxylic acids by strong oxidants: (Jones reagent), acidified , and alkaline with acidic work-up. at 573 K only dehydrogenates a primary alcohol to an aldehyde, and with acetic anhydride is a mild reagent that stops at the aldehyde. Hence A, B and C only.

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