Choose the correct order of alkyl group attached to aldehyde that prefer the nucleophilic addition at carbonyl carbon?

primary > tertiary > secondary

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primary > secondary > tertiary

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tertiary > secondary > primary

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secondary > tertiary > primary

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Solution

The correct option is B $primary > secondary > tertiary$
As the alkyl group in aldehyde increases, carbonyl carbon becomes a weak electrophile due to alkyl +I effect and the reactivity toward nucleophilic addition becomes low.
Hence,
$primary > secondary > tertiary$

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Choose the correct order of alkyl group attached to aldehyde that prefer the nucleophilic addition at carbonyl carbon?

The correct option is B primary > secondary > tertiaryAs the alkyl group in aldehyde increases, carbonyl carbon becomes a weak electrophile due to alkyl +I effect and the reactivity toward nucleophilic addition becomes low. Hence, primary > secondary > tertiary

The correct option is B $primary > secondary > tertiary$
As the alkyl group in aldehyde increases, carbonyl carbon becomes a weak electrophile due to alkyl +I effect and the reactivity toward nucleophilic addition becomes low.
Hence,
$primary > secondary > tertiary$