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Question

Which one of the following turns acidified potassium dichromate from orange to green?

A
CH3CH2OH
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B
C6H14
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C
CH3COOH
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D
CH3CH2CH2Br
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Solution

The correct option is A CH3CH2OH
The direct oxidation of primary alcohols to carboxylic acids can be carried out using potassium permanganate with sulfuric acid changing the color from orange to green.

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