NEET2015Chemistry-Aldehydes and Ketones

NEET 2015 Chemistry Reactions of Aldehydes MCQ Question

Type: MCQ-conceptual-Medium-Class 12

An organic compound ‘X’ having molecular formula C₄H₈O₂ yields phenyl hydrazone and gives negative response to the iodoform test and Tollen’s test. It produces n-pentane on reduction. ‘X’ could be ______.

A

pentanal

B

pentan2onepentan^{-2}-one

C

pentan3onepentan^{-3}-one

D

n-amyl alcohol

Correct Answer

Option B

Detailed Explanation

The compound ‘X’ is likely an aldehyde because it forms a phenyl hydrazone and gives a negative iodoform test. Reduction of an aldehyde would yield an alkane, consistent with the production of n-pentane.

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