Question

Which of following on oxidation forms propanone?

• A. 1-Propanol
• B. 2-Propanol
• C. 2-Butanol
• D. 2- methylbutan-1-ol

Hint:

Oxidation of a secondary alcohol gives a ketone; 2-propanol gives acetone.

Answer 1

The Correct Option is B

Step 1: Understanding the Concept
Primary alcohols oxidise to aldehydes and acids, secondary alcohols oxidise to ketones.

Step 2: Detailed Explanation
Propanone is \(\text{CH}_3\text{COCH}_3\), made from 2-propanol:
\[ \text{CH}_3\text{CH(OH)CH}_3 \xrightarrow{[O]} \text{CH}_3\text{COCH}_3 \]
1-Propanol gives propanal or propanoic acid. 2-Butanol gives butanone. 2-Methylbutan-1-ol is primary and gives an aldehyde or acid.

Final Answer:
2-Propanol gives propanone, option (B). \[ \boxed{\text{2-Propanol}} \]