NTA Abhyas 2020

Exam: NTA Abhyas
Year: 2020
Subject: Chemistry
Chapter: General Principles and Processes of Isolation of Metals

NTA Abhyas 2020 · Chemistry · General Principles and Processes of Isolation of Metals

Which one of the following reactions is an example for calcination...

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

Options

A $2Ag + 2HCl + ( O ) \to 2AgCl + {H}_{2}O$
B $2Zn + {O}_{2} \to 2ZnO$
C $2ZnS + 3{O}_{2} \to 2ZnO + 2S{O}_{2}$
D $MgC{O}_{3} \to MgO + C{O}_{2}$

Correct answer

D. $MgC{O}_{3} \to MgO + C{O}_{2}$

Step-by-step solution

The process of heating the concentrated ore in the absence of air is known as calcination. The carbonate ore gets decomposed to form oxide of metal on calcination.

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