Question

Calcination is a process in which ore is heated in the absence of air. As a result of which the ___ ore is converted into its oxide.

• A. No of protons
• B. No of neutrons
• C. No of electrons
• D. Sum of Electrons and protons

Answer 1

The correct option is B

No of neutrons

Calcination is a process in which ore is heated in the absence of air. As a result of calcination, the carbonate ore is converted into its oxide. Whereas roasting is a process in which ore is heated in the presence of excess of air. As a result of roasting, the sulphide ore is converted into its oxide.