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n-Propyl alcohol and isopropyl alcohol can be chemically distinguished by which reagent?

1. PCl5
2. Reduction
3. Oxidation with potassium dichromate
4. Ozonolysis

Correct answer: Oxidation with potassium dichromate

Solution

n-Propyl alcohol and isopropyl alcohol can be distinguished by oxidation with potassium dichromate. n-Propyl alcohol (a primary alcohol) oxidizes to an aldehyde, while isopropyl alcohol (a secondary alcohol) oxidizes to a ketone.

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