Q21 of 52 Page 80

Which of the following reactions occur during calcination?

Calcination involves the heating when the volatile matter escapes leaving behind the metal oxide in the limited supply of air. Ores that contain carbonates, hydroxides or oxides can be calcined.

Thus,


CaCO3→CaO + CO2



So, only reaction (i) and (iii) will undergo calcination.

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