AIPMT PRELIMS 2009 Chemistry Oxidation of Alcohols MCQ Question with Solution

H₂COH · CH₂OH on heating with periodic acid gives:

A

2 HCOOH

B

CHO | CHO

C

2 H₂C = O

D

2 CO₂

Option C

Periodic acid (HIO₄) cleaves vicinal diols to form aldehydes or ketones. Here, the reaction produces two molecules of formaldehyde (H₂C = O).

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CH₃OC₂H₅ and (CH₃)₃C – OCH₃ are treated with concentrated acidic iodide. The fragments after reactions obtained are

Arrange the following alkyl halides in decreasing order of the rate of β-elimination reaction with alcoholic KOH.

What happens when a carboxylic acid is treated with lithium aluminium hydride?

Which one of the following depresses brain activity and produces feelings of calmness, relaxation and drowsiness?