Oxidation of alkenes by cleavage with the acidic or alkaline `KmNO_(4)` of acidic `K_(2)Cr_(2)O_(7)` at higher temperature yields products depending upon the nature of alkene. A hot solultion of `KMnO_(4)` is a strong oxidising agent which gives only ketones and carboxylic acids and not aldehydes (as they cannot be isolated).

Oxidation of alkenes with `OsO_(4)` followed by alcoholic `NaHSO_(3)` or `Na_(2)SO_(3)` yeilds glycols.

Answer the following questions:
Which of the following alkenes on oxidation with hot `KMnO_(4)` gives cyclopentanone?

Options

A. 2-Methylcyclopentene
B. Cyclopentene
C. Methylenecyclobutane
D. methylenecyclopentane

Answer

D