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Question

1- propanol and 2-propanol can be best distinguished by:



Your Answer
A
Oxidation with alkaline KMnO4followed by reaction with Fehling's solution.
Your Answer
B

Oxidation with acidic dichromate followed by reaction with Fehling's solution.

Correct Answer
C

Oxidation by heating with copper followed by reaction with Fehling's solution.

Your Answer
D

Oxidation with conc.H2SO4 followed by reaction with Fehling's solution.


Solution

The correct option is A

Oxidation by heating with copper followed by reaction with Fehling's solution.


When 1-propanol is heated with copper, it is oxidized to aldehyde which on passing through Fehling's solution gives red ppt. whereas 2-propanol on heating with copper, get oxidized to ketone which doesn't react with Fehling's solution.

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