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.

Which of the following are not the properties of calcium silicate (slag) formed in the slag formation zone in the extraction of iron from haematite ore ?

The reason for the addition of manganese that makes steel useful in making rails of railroads is:

Sodium, Magnesium and Aluminium can be obtained from their ore by

The most commonly used reducing agent for reduction of metal oxides into metals is

The Slag obtained during the smelting process in the extraction of copper from copper pyrites is

Which of the following gives metal by electrolytic reduction conveniently and profitably?

Which of the following is used as reducing agent in Goldschmidt method?

Which of the following oxides cannot be reduced by auto or self reduction?

Serpeck's method involves the heating of bauxite with

In the metallurgy of iron, the slag is

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

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 

Flux is used to

The process which involves smelting is

Which of the reactions occurs in slag formation zone in blast furnace for manufacture of iron?

Thermite is a mixture of :-