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Question

Which of the following compounds give a ketone with grignard reagent?

A
Formaldehyde
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B
Ethyl alcohol
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C
Methyl cyanide
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D
Methyl iodide
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Solution

The correct option is C Methyl cyanide
Methyl cyanide gives a ketone with grignard reagent. For example, methylcyanide reacts with methyl magnesium bromide to form an adduct magnesium bromide propan-2-ylideneamide which on hydrolysis gives propan-2-one. Therefore, the correct answer is option (c).


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