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JEE Main 201912 JanuaryMorning Shift

Exam: JEE Main
Year: 2019
Date: 12 January
Shift: Morning Shift
Subject: Chemistry
Chapter: Alcohols Phenols and Ethers

JEE Main 2019 · 12 January · Morning Shift · Chemistry · Alcohols Phenols and Ethers

cannot be prepared by:

cannot be prepared by:

cannot be prepared by:

Options

A $HCHO + PhCH\left({CH}_{3}\right){CH}_{2}MgX$
B ${PhCOCH}_{2}{CH}_{3} + {CH}_{3}MgX$
C ${CH}_{3}{CH}_{2}{COCH}_{3} + PhMgX$
D ${PhCOCH}_{3} + {CH}_{3}{CH}_{2}MgX$

Correct answer

A. $HCHO + PhCH\left({CH}_{3}\right){CH}_{2}MgX$

Step-by-step solution

The given compound is tertiary alcohol and formaldehyde forms secondary alcohol on reaction with Grignard reagent.

cannot be prepared by:

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