Identify the reagent for the conversion of but-2-ene to ethanal.(a) O3/H2O-Zn dust(b) H2O, H2SO4, HgSO4(c) PCC(d) DIBAL-HThe question was asked during an internship interview.The question is from Preparation of Aldehydes and Ketones in portion Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12

Identify the reagent for the conversion of but-2-ene to ethanal.(a) O3

1.	Identify the reagent for the conversion of but-2-ene to ethanal.(a) O3/H2O-Zn dust(b) H2O, H2SO4, HgSO4(c) PCC(d) DIBAL-HThe question was asked during an internship interview.The question is from Preparation of Aldehydes and Ketones in portion Aldehydes, Ketones and Carboxylic Acids of Chemistry – Class 12
Answer» Correct CHOICE is (a) O3/H2O-Zn dust Explanation: But-2-ene on ozonolysis FOLLOWED by reaction with WATER and ZINC dust gives ethanal or sometimes a mixture of an aldehyde and ketone depending on the substitution pattern.

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