Question: The most suitable reagent for the conversion of $\mathrm{R}-\mathrm{CH}_{2}-\mathrm{OH} \rightarrow \mathrm{R}-\mathrm{CHO}$ is :-
$\mathrm{CrO}_{3}$
PCC (Pyridinium chlorochromate)
$\mathrm{KMNO}_{4}$
$\mathrm{K}_{2} \mathrm{Cr}_{2} \mathrm{O}_{7}$
Correct Option: 2,
Solution:
