NEET2017Chemistry-Organic Chemistry

NEET 2017 Chemistry Alcohols and Aldehydes MCQ Question

Type: MCQ-conceptual-Hard-Class 12

Consider the following reactions:

i. X →[C₆H₆O] Cu, 573 K → [Ag(NH₃)₂]⁺ Silver mirror observed ii. NH₂−NH−C−NH₂ → Z

Identify A, X, Y and Z.

A

A⁻Methoxymethane, X⁻Ethanol, Y⁻Ethanoic acid, Z⁻Semicarbazide

B

A⁻Ethanol, X⁻Ethanol, Y⁻But2t^{-2}-enal, Z⁻Semicarbazone

C

A⁻Ethanol, X⁻Acetaldehyde, Y⁻Butanone, Z⁻Hydrazone

D

A⁻Methoxymethane, X⁻Ethanoic acid, Y⁻Acetate ion, Z⁻Hydrazine

Correct Answer

Option C

Detailed Explanation

The reaction sequence involves oxidation of ethanol to acetaldehyde, which gives a silver mirror test, and further reactions lead to hydrazone formation.

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