Question

A Solid compound ‘A’ decomposes on heating into B and a gas ‘C’. On passing the gas

‘c’ through water, it becomes acidic . Identify A, B and C.


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Answer 1

Answer:

calcium carbonate is solid compound (A) CaCO3 after decomposes CaCO3 ------------> CaO+CO2 here CaO is compound B and CO2 is compound C when CO2 gas passes through water it form carbonic acid CO2+H2O----------> H2CO3