The most suitable reagent for the conversion of R C H 2 O H → R C H O is

The most suitable reagent for the conversion of RCH2OH→RCHO is
  1. KMnO4
  2. K2Cr2O7
  3. CrO3
  4. PCC 

Solution

The alcohol can be converted to aldehyde group by treating with oxidising agent Pyridinium chloro chromate (C5H5N⊕HCrO3Cl-) it is abbreviated as PCC and is called Collin's reagent. This reagent is used in non aqueous solvent like CH2Cl2 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.

Asked in: JEE-TOPICTESTS-CHEMISTRY

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