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:
An alkene 1,2-dimethyl cyclobutene on oxidation with hot `KMnO_(4)` gives:
A. 4-ketopentanoic acid
B. 2,3-diketo cyclohexane
C. hexane-2,5-dione
D. ethanoic acid and butanoic acid
