Home
Class 12
CHEMISTRY
Calcination is used in metallurgy for re...

Calcination is used in metallurgy for removal of

A

water and sulphide

B

`CO_2` and `H_2S`

C

`H_2O` and `H_2S`

D

water and `CO_2`

Text Solution

Verified by Experts

The correct Answer is:
D

It is a process of heating the concentrated ore in limited supply of air. It removes `H_2O` and `CO_2`.
Promotional Banner

Similar Questions

Explore conceptually related problems

The autoreduction method Is used in the metallurgy of

Which of the following statements are wrong? i) Calcination is mainly used for carbonate ore to get its oxide ii) Hydrated ore and hydroxides become anhydrous by calcination iii) Impurities like S, As and Sb are removed in the form of elemental vapours by calcination iv) Roasting is an endothermic process v) Roasting is mainly applicable for sulphide ore to get its oxide vi) Some times as a result of roasting, higher oxidation state oxide gets converted into lower oxidation state oxide.

The chelating ligand used in chelate therapy for removing excess of iron if present in toxic proportions in liver tissues of human beings /animals is

The chelating ligand used in chelate therapy for removing excess of copper if present in toxic proportions in liver tissues (Wilson's disease) of human beings/animals is

Calcination and raosting are treatments in metallurgy before metal extraction. Differentiate calcination and roasting.

Calcination is used to convert zinc carbonate into zinc oxide. But cuprous sulphate is converted into cuprous oxide by roasting: What is the difference between calcination and roasting?

The concept of DeltaG^@ of coupled reaction are used explain reductions in metallurgy. Explain the above statement.

Which of the following statements regarding the metallurgy of aluminium by electrolytic method is not correct?