Which substance is used in the purification o | vedclass

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Question

(A) Bone charcoal is prepared by the destructive distillation of bones. It contains about $10-12\%$ of carbon and the rest is mainly calcium phosphate

Vedclass · Accepted Answer

Hydrochloric acid $(HCl)$

Vedclass · Answer

(A) Bone charcoal is prepared by the destructive distillation of bones. It contains about $10-12\%$ of carbon and the rest is mainly calcium phosphate $(Ca_3(PO_4)_2)$. To purify bone charcoal and remove the calcium phosphate,it is treated with dilute hydrochloric acid $(HCl)$. The acid dissolves the calcium phosphate,leaving behind the pure carbon residue.

Which substance is used in the purification of bone charcoal?

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