Question

The compound that yields only ketonic compound(s) on ozonolysis is:

• A. but-2-ene
• B. pent-2-ene
• C. 2,3-dimethylbut-2-ene
• D. 2-methylbut-2-ene

Answer 1

Answer: (C)

2,3-dimethylbut-2-ene

Ozonolysis helps in identifing the position of double bonds in alkenes, through the intermediate formation of ozonide. Here 2,3-dimethylbut-2-ene on ozonolysis yields 2 molecules of propanone is a ketonic compound.