Question

Which of the following reactions is an example for calcination process ?

Accepted Answer

$\mathrm{MgCO}_3 \rightarrow \mathrm{MgO}+\mathrm{CO}_2$

Answer

$2 \mathrm{Ag}+2 \mathrm{HCl}+(\mathrm{O}) \rightarrow 2 \mathrm{AgCl}+\mathrm{H}_2 \mathrm{O}$

Answer

$2 \mathrm{Zn}+\mathrm{O}_2 \rightarrow 2 \mathrm{ZnO}$

Answer

$2 \mathrm{ZnS}+3 \mathrm{O}_2 \rightarrow 2 \mathrm{ZnO}+2 \mathrm{SO}_2$

JEE CHEMISTRY MCQ: GENERAL PRINCIPLES AND PROCESSES OF ISOLATION OF ELEMENTS

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