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Question
The boiling point of glycerol is 563K but it decomposes below 563K. It is purified by
The boiling point of glycerol is 563K but it decomposes below 563K. It is purified by
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Solution
The correct option is C Distillation under reduced pressure
The compound which decomposes below its boiling point cannot be purified by normal distillation. If pressure is reduced it will boil at a lower temperature and hence it is purifies by carrying out distillation under reduced pressure.
The compound which decomposes below its boiling point cannot be purified by normal distillation. If pressure is reduced it will boil at a lower temperature and hence it is purifies by carrying out distillation under reduced pressure.
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