Question

n-propyl alcohol and isopropyl alcohol can be chemically distinguished by which reagent:

• A. $PC{l}_5$
• B. reduction
• C. oxidation with potassium dichromate
• D. oznolysis

Answer 1

The correct option is C oxidation with potassium dichromate

1)n-propyl alcohol oxidize with $KMn{O}_4$ to give Propanoic acid.

2)Isopropyl alcohol oxidizes with $KMn{O}_4$ to give Propanone.

Above two reactions give different products, So we can differentiate alcohol by oxidation with $KMn{O}_4$.option C is correct.

Remained option are not differentiated alcohol because-A) $PC{l}_5$ chlorination of alcohol give chloropropane and 2 -chloropropane

B) reduction is not possible in this examples.

D)ozonolysis is not possible because there is not a double bond present in examples (oxidation of double bond by $O_3$)