Question

$1$ -Propanol and $2$-propanol can be distinguished by

• A. oxidation with alkaline $KMnO_{4}$ followed by reaction with Fehling solution
• B. oxidation with acidic dichromate followed by reaction with Fehling solution
• C. oxidation by heating with copper followed by reaction with Fehling solution
• D. oxidation with concentrated $H_{2}SO_{4}$ followed by reaction with Fehling solution

Answer 1

Answer: (C)

$CH _{3}- CH _{2}- CH _{2}- OH \xrightarrow[573\,k]{ Cu } \underset{\text{ Gives red ppt.with}}{CH _{3}- CH _{2}- CHO}$
Fehling's solution
$CH _{3}- CHOH - CH _{3} \xrightarrow[573 \,K ]{ Cu } CH _{3}- CO - CH _{3}$
(Does not giveF ehling s solution test)