Engineering
Chemistry
Chemical Reactions of Alcohols
Carboxylic acid Derivatives Acid Halide Anhydride Ester Amide
Question
A polyhydroxy alcohol having molecular weight = 168, on acetylation the molecular weight increases to 294, the number of –OH groups present in the alcohol is X?
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Solution
Change in molecular weight = 294 –168 ⇒ 126
On acetylation
so, No. of –OH groups = ⇒ 3
Hence X = 3
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