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Q.
The most suitable reagent for the conversion of $RCH_{2}OH \rightarrow RCHO$ is
NTA AbhyasNTA Abhyas 2020
Solution:
The alcohol can be converted to aldehyde group by treating with oxidising agent Pyridinium chloro chromate $\left(\right.C_{5}H_{5}\overset{\oplus}{N}HCrO_{3}Cl^{-}\left.\right)$ it is abbreviated as $PCC$ and is called Collin's reagent. This reagent is used in non aqueous solvent like $CH_{2}Cl_{2}$ It is a very good reagent because it checks the further oxidation of aldehyde to carboxylic acid while rest oxidising agent oxidise aldehyde into carboxylic acid.