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NEET levelSingle correct optionDifficulty 1 of 3hc037

Ozonolysis of ethene followed by reductive work-up ( $Zn / H X_{2} O$ ) gives

Aone molecule of ethanal
Btwo molecules of methanal
Cethane-1,2-diol
Dtwo molecules of methanoic acid

Answer: B

Ozone cleaves the

C = C

bond and each carbon becomes a carbonyl carbon. For

CH X_{2} = CH X_{2}

this gives two molecules of

HCHO

under reductive work-up.

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