Physics NEET Full Syllabus Mock Test 180 Question New Syllabus Mock Test - 13 PCB MCQ (Single Correct)

A carbonyl compound is resistant to mild oxidation. Reduction of X affords a secondary alcohol . Treatment of Y with HBr gives the bromide Z , which is converted to a Grignard reagent. Reaction of this Grignard reagent with X followed by aqueous work-up produces 3,4-dimethyl-3-hexanol. The correct identities of , and Z are:

A
;
B

C

D
;

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The correct answer is:
A

X must be a ketone (resistant to mild oxidation). With - butanone. Reduction → 2-butanol (secondary) bromobutane .
Grignard from Z adds to 2-butanone to give

= 3,4-dimethyl-3-hexanol.

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