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Question

Chemistry Question on Phenols

I -propanol and 2-propanol can be best distinguished by

A

oxidation with alkaline {KMnO_4 followed by reaction with Fehling solution

B

oxidation with acidic dichromate followed by reaction with Fehling solution

C

oxidation by heating with copper followed by reaction with Fehling solution

D

oxidation with concentrated H2SO4H_2SO_4 followed by reaction with Fehling solution

Answer

oxidation by heating with copper followed by reaction with Fehling solution

Explanation

Solution

1−propanol Cu/Δ→CH3−CH2−CHO→solutionFehlingredCu2O↓{ 1-propanol \, \underrightarrow{Cu/\Delta} CH_3-CH_2-CHO \xrightarrow[solution]{Fehling} _{red}^{Cu_2O} \downarrow}