Q. 524.7( 3 Votes )

Explain giving equation, what happens when: (a) ZnC03 is heated in the absence of air?
(b) a mixture of Cu2O and Cu2S is heated?

Answer :

(a) When zinc carbonate heated in absence of air, it releases carbon di oxide gas and forms zinc oxide. We can see through equation as well.

ZnCO3 ZnO + CO2

(b) 2Cu2O + Cu2S → 6Cu + SO2

Hence we can say that when a mixture of Cu2O and Cu2S is heated, carbon and Sulphur di oxide gas released.

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