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  • Which among the following reaction is an example of calcination? <img alt="\\\text{A}. \mathrm{CaCO}_3(\mathrm{~s})+ \text{ heat} \rightarrow \mathrm{CaO}(\mathrm{s})+\mathrm{CO}_2(\mathr

Which among the following reaction is an example of calcination?

\\\text{A}. \mathrm{CaCO}_3(\mathrm{~s})+ \text{ heat} \rightarrow \mathrm{CaO}(\mathrm{s})+\mathrm{CO}_2(\mathrm{~g})\\ \\\text{B}. 4 \mathrm{FeS}_2(\mathrm{~s})+11 \mathrm{O}_2(\mathrm{~g}) \rightarrow 2 \mathrm{Fe}_2 \mathrm{O}_3(\mathrm{~s})+8 \mathrm{SO}_2(\mathrm{~g})\\ \\\text{C}. \mathrm{CuS}(\mathrm{s})+\mathrm{CuSO}_4(\mathrm{~s}) \rightarrow 2 \mathrm{Cu}(\mathrm{s})+2 \mathrm{SO}_2(\mathrm{~g})\\ \\\text{D}. \mathrm{Fe}_2 \mathrm{O}_3 \cdot \mathrm{xH}_2 \mathrm{O}(\mathrm{s})+\text{heat} \rightarrow \mathrm{Fe}_2 \mathrm{O}_3(\mathrm{~s})+\mathrm{xH}_2 \mathrm{O}(\mathrm{g})

Option: 1

A and B only


Option: 2

C only


Option: 3

A and D only


Option: 4

B and D only


Answers (1)

best_answer

Calcination is the process of heating the ore in the absence of air. 

During Calcination -
Metal Carbonates + Heat

Posted by

Sanket Gandhi

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