1.

Na_(2)CO_(3)+SO_(2)overset(Delta)rarr A+B,B+S rarr C andC +2AgNO_(3)rarr 2NaNO_(3)+D. When compound D on exposure to moisture gives black precipitate silver sulphide. What are the substances A and C?

Answer»

SOLUTION :`CO_(2),C=Na_(2)S_(2)O_(3)`


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