Question

The products obtained by the ozonolysis of $2$-ethylbut-$1$-ene are

• A. propanone and ethanal
• B. ethanal and 3-pentanone
• C. butanal and ethanal
• D. methanal and 2-pentanone
• E. methanal and 3-pentanone

Answer 1

Answer: (E)

$2$ -ethyl but-$1$ -ene gives the following products when subjected to ozonolysis.



Thus, products of the ozonolysis of $2$ -ethylbut-$1$-ene are methanal and $3$-pentanone.

To predict the products of ozonolysis, break the double bond by adding two $O$ -atoms as