Which alcohol of molecular formula C_4H_9OH c | vedclass

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(B) The reduction of aldehydes gives primary alcohols,and the reduction of ketones gives secondary alcohols.$1$. Butan$-1-$ol (primary alcohol) can be

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$2-$methyl propan$-2-$ol

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(B) The reduction of aldehydes gives primary alcohols,and the reduction of ketones gives secondary alcohols.$1$. Butan$-1-$ol (primary alcohol) can be obtained by the reduction of butanal.$2$. Butan$-2-$ol (secondary alcohol) can be obtained by the reduction of butan$-2-$one.$3$. $2-$methyl propan$-1-$ol (primary alcohol) can be obtained by the reduction of $2-$methyl propanal.$4$. $2-$methyl propan$-2-$ol is a tertiary alcohol. Tertiary alcohols cannot be prepared by the reduction of carbonyl compounds (aldehydes or ketones) as they require the addition of a Grignard reagent to a ketone.

Which alcohol of molecular formula $C_4H_9OH$ cannot be obtained by the reduction of a carbonyl compound?

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