Roasting is a process in which the ore (mostly sulphide) is heated strongly in the presence of excess of air. The heating should be done at a temperature below the melting point of the ore.
Select of correct statement :

Roasting is a process in which the ore (mostly sulphide) is heated strongly in the presence of excess of air. The heating should be done at a temperature below the melting point of the ore. Sometimes roasting may not bring about complete oxidation : 2CuFeS_(2) + 4O_(2) rarr A + 2FeO + 3SO_(2) Find the A :

Roasting is a process in which the ore (mostly sulphide) is heated strongly in the presence of excess of air. The heating should be done at a temperature below the melting point of the ore. Sometimes roasting may not bring about complete oxidation : 2CuFeS_(2) + 4O_(2) rarr A + 2FeO + 3SO_(2) Find the A :

Roasting is a process in which the ore (mostly sulphide) is heated strongly in the presence of excess of air. The heating should be done at a temperature below the melting point of the ore. 2PbS + 3O_(2) rarr A + 2SO_(2) The name of A is.

Roasting is a process in which the ore (mostly sulphide) is heated strongly in the presence of excess of air. The heating should be done at a temperature below the melting point of the ore. 2PbS + 3O_(2) rarr A + 2SO_(2) The name of A is.

In calcination, ore is heated strongly in the absence of air

In calcination, ore is heated strongly in the absence of air

Zinc sulphide is heated strongly in excess of air. Give balanced reaction.

Roasting is the process in which the ore is heated in the presence of excess air.