Which of the following will undergo aldol condensation?
I)Acetaldehyde II)Propanal III) Benzaldehyde IV) Acetone

I, II IV only

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III only

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IV only

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I & IV only

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Solution

The correct option is B I, II IV only
Benzaldehyde doesn't have any alpha hydrogens so it can't undergo aldol condensation.

Option A is correct.

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