Reduction of Metal Oxides to Metals

Copper can be extracted from

Copper can be extracted from

In the thermite process … is used as a reducing agent.

Discuss the reduction of metal by hydrogen.

The element which is most difficult to be extracted from it's oxide using coke as a reducing agent is:

Which of the following can be removed by the addition of silica in the extraction of copper by smelting?

In the extraction of copper from its sulphide ore, metal is finally obtained by the oxidation of cuprous sulphide with:

The element which is most difficult to be extracted from it's oxide using coke as a reducing agent is:

The metal used in the thermite process of reducing metal oxides is

Select correct statement

During the extraction of haematite, limestone is added which acts as

Explain hydrometallurgy.

Define pyrometallurgy.

The extraction of gold involves leaching the metal with ${\mathrm{CN}}^{-}$, the metal is later recovered by displacement method using a zinc metal. In this reaction, zinc acts as a 

Explain the extraction of chlorine from brine solution.

Describe pyrometallurgy.

Flux is used to

How is chemical reduction different from electrolytic reduction? Name a metal of each, which is obtained by electrolytic reduction.

During smelting an additional substance is added which combines with impurities to form a fusible product. Name the substance.