(D) Calcination is a process of heating an ore to a high temperature,but below its melting point,in the absence of air or in a limited supply of air.

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

ore is heated below its melting point to expel $H_2O$ or $CO_2$

(D) Calcination is a process of heating an ore to a high temperature,but below its melting point,in the absence of air or in a limited supply of air. This process is primarily used to remove volatile impurities like moisture $(H_2O)$ and carbon dioxide $(CO_2)$ from carbonate ores.

Class 12 Chemistry General Principles and Processes of Isolation of Elements Roasting and Calcination

Medium

Calcination is the process in which

JEE MAIN 2013 All JEE MAIN

A
ore is heated above its melting point to expel $H_2O$ or $CO_2$ or $SO_2$
B
ore is heated below its melting point to expel volatile impurities
C
ore is heated above its melting point to remove $S, As$ and $Sb$ as $SO_2, As_2O_3$ and $Sb_2O_3$ respectively
D
ore is heated below its melting point to expel $H_2O$ or $CO_2$