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Question

In the following reaction, the alkene affords the compound 'B'
CH3CH=CHCH3+O3Zn−−→H2OB
The compound B is:

A
CH3COCH3
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B
CH3CH2COCH3
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C
CH3CHO
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D
CH3CH2CHO
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Solution

The correct option is C CH3CHO
Ozonolysis of alkenes involves the addition of an ozone molecule to an alkene, to form an ozonide. Formed ozonide undergoes cleavage by Zn/H2O to give smaller oxidised product. Here product B is acetaldehyde.
CH3CH=CHCH3+O3ZnH2O2CH3CHO

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