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Question: When lime stone is heated strongly, it gives off \(\mathrm { CO } _ { 2 }\). In metallurgy this proc...

When lime stone is heated strongly, it gives off CO2\mathrm { CO } _ { 2 }. In metallurgy this process is known as.

A

Calcination

B

Roasting

C

Smelting

D

Ore dressing

Answer

Calcination

Explanation

Solution

CaCO3→CaO+CO2\mathrm { CaCO } _ { 3 } \rightarrow \mathrm { CaO } + \mathrm { CO } _ { 2 }

Heating the ore in absence of air is calcination.