Published by:
CGP EDU Academic Team
Published on: August 13, 2026
Which of the following reaction is an example of calcination process ?
A
2Ag + 2HCl + [O] 
2AgCl + H 2 O
2AgCl + H 2 O
B
2Zn + O 2 
2ZnO
2ZnO
C
2ZnS + 3O 2 
2ZnO + 2SO 2
2ZnO + 2SO 2
D
MgCO 3 
MgO + CO 2
MgO + CO 2
Text Solution
Verified by ExpertsThe correct answer is:
D
The process of conversion of a concentrated ore into its oxide by heating in absence of or in limited supply of air is called calcination. It is usually done for hydroxide, hydrated oxides and carbonate ores.
Thus, MgCO 3 
MgO + CO 2 is an example of calcination process.
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