Question

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

• A. $PCl_5$
• B. reduction
• C. oxidation with potassium dichromate
• D. ozonolysis

Answer 1

Answer: (C)

oxidation with potassium dichromate

Answer 2

$n-$ propyl alcohol and isopropyl alcohol gives different product on oxidation with $K_{2}Cr_{2}O_{7}$.
$\underset{\text{n-propyl alcohol}}{CH _{3}- CH _{2}}- CH _{2} OH$
${ ->[{[O]}][{K_2Cr_2O_7/H_2SO_4}]}\underset{\text { propionaldehyde }}{ CH _{3}- CH _{2}- CHO }$
${ ->[{[O]}][{K_2Cr_2O_7/H_2SO_4}]}$