Which of the following alkenes on ozonolysis give a mixture of ketones only?

Question

Philoid · Accepted Answer

Ozonolysis can be simply understood as addition of O to both the sides of double bonds forming carbonyl compounds (-C=O).

(i) and (ii) alkenes will give aldehydes and (iii) and (iv) will give ketones on ozonolysis. It can be understood from following equations.

CH₃-CH= CH—CH₃ → CH₃—HC=O + O=CH—CH₃