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Question

Primary alcohols can be obtained from the reaction of RMgX followed by hydrolysis with:

A
CO2
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B
HCHO
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C
CH3CHO
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D
H2O
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Solution

The correct option is C HCHO
For HCHO,
RMgX+HCHORCH2OH

For CH3CHO
RMgX+CH3CHOR(CH3)CHOH

For H2O
RMgBr+H2ORH+Mg(OH)Br

For CO2
RMgBr+CO2RCOOH

All reactions are followed by hydrolysis to give respective compounds.
Only for HCHO, primary alcohol is produced.

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