Which one of the following turns acidified potassium dichromate from orange to green?
A
CH3−CH2−OH
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B
C6H14
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C
CH3−COOH
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D
CH3−CH2−CH2−Br
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Solution
The correct option is ACH3−CH2−OH 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.