Question

Alkenes undergoes a variety of oxidation reactions. With cold and neutral or alkaline KMnO4 ,

alkenes are oxidized to vicinal diols. Oxidation with hot KMnO4 undergoes cleavage of C= C bond

leading to the formation of carboxylic acids, ketones and carbon dioxide depending upon the nature of

alkene. Reductive ozonolysis of alkenes gives aldehydes and ketones.

Answer the following questions

(i) But-2-ene on treatment with cold alk. KMnO4 gives

a) Butane-1,2 – diol b) Butane-2,3-diol

c) Ethylene glycol d) Glyoxal

(ii) An alkene ‘X’ on treatment with hot alkaline KMnO4 gives acetic acid. Alkene ‘X’ is

a) Hex-3-ene b) But-2-ene

c) But-1-ene d) Pent-1-ene

(iii) Reductive Ozonylysis of alkene ‘A’ gives propanone. The alkene ‘A’ is

a) 2,3-Dimethylbut-2-ene b) 2,4-Dimethylpent-2-ene

c) 2-Methylbut-1-ene d) 2-Methylpropene

(iv) 2-Methylpropene on treatment with hot alkaline KMnO4 gives

a) (CH3)2CO , HCOOH b) (CH3)2CO ,CO2

c) (CH3)2CO , CH3CHO d) CH3CHO , CH3CH2CHO​

Answer 1

Answer:

to tough give me some time than I will answer

Answer 2

Answer:

the first question is related to hydroxylation out of the topic of ozonolysis and Oxidation