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In the following sequence of reactions, the alkene affords the compound 'B' CH3CH=CHCH3 O3 / H2O A Zn B. The compound B is

1. CH3CH2CHO
2. CH3COCH3
3. CH3CH2COCH3
4. CH3CHO

Correct answer: CH3CHO

Solution

The reaction sequence involves ozonolysis of the alkene, which cleaves the double bond and forms carbonyl compounds. In this case, the cleavage produces acetaldehyde (CH3CHO) as the final product, making it the correct answer.

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