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Question

Which amongst the following is the purest form of charcoal?


  1. Wood charcoal

  2. Sugar charcoal

  3. Bone charcoal

  4. Lamp black


Solution

The correct option is B

Sugar charcoal


Sugar charcoal is the purest form of amorphous carbon. It is prepared by heating cane-sugar or glucose in the absence of air. It can also be prepared by dehydration of cane-sugar or glucose in the presence of sulphuric acid.

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