CGPET 2021 Solved Paper

Section: Chemistry

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Question : 93 of 150

Marks: +1, -0

Which one of the following reaction is an example for calcination process?

MgCO3
∆
→
‌MgO+CO2
2‌ZnS+3O2→2‌ZnO+2SO2
2‌Zn+O2→2‌ZnO
2‌Ag+2‌HCl+[O]→2‌AgCl+H2O

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