Question

Which of the following reagents limits the oxidation of \(\text{R-CH}_2\text{OH}\) up to R-CHO only?

• A. PCC
• B. \(\text{CrO}_3\)
• C. \(\text{K}_2\text{Cr}_2\text{O}_7\) / dil. \(\text{H}_2\text{SO}_4\)
• D. \(\text{KMnO}_4\) (acidic)

Hint:

PCC is a mild oxidising agent used in non-aqueous medium.

Answer 1

The Correct Option is A

Step 1: Compare strengths
Dichromate, permanganate and chromic acid oxidise further to acids. PCC does not.

Step 2: Answer
Option (A).

Final Answer:
PCC. \[ \boxed{\text{(A)}\ \text{PCC}} \]