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Question

Which of the following will not give butanoic acid as one of the product?

A
CH3CH2CH2BrMgEther(i)CO2(ii)HCl/H2O
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B
CH3CH2CH2BrNaCN(aq)H+/H2O
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C
CH3CH2CHO+HCNH+/H2O
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D
CH3CH2CH2CH=CH2KMnO4H+/H2O
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Solution

The correct option is C CH3CH2CHO+HCNH+/H2O
Reaction:
CH3CH2CHO+HCNH+/H2OCH3CH2CH(OH)CNH2O/H+−−−−CH3CH2CH(OH)COOH

All other reaction gives butanoic acid CH3CH2CH2COOH.

Option C is correct.

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