Iron Is extracted from its oxide ores.Name two minerals of iron (Fe).

Iron Is extracted from its oxide ores.Do you think that all minerals of Iron are used as ores of* iron ? Substantiate.

Metals are extracted from their chief ore. Name the principal ore of Aluminium.

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

Second law of thermodynamics deals with the spontanelty of a process. Iron is extracted from the ore Fe_2O_3 . Using the date given above suggest whether the decomposition of Fe_2O_3 is feasible or not. Substantiate. (DeltaH^@= 824 kJ//mol, DeltaS^@ + 0.276 kJ//mol K, T = 298 K).

In the extraction of copper from its sulphide ore, the metal is formed by reduction of 'Cu2 O' with

Haematitie, magnetite, iron pyrites etc. are the minerals of iron. Which are the ores of iron among these minerals?

When a metal is to be extracted from its ore, if the gangue associated with the ore is silica, then

Name three metals.which occur in nature miainly as oxide ores. Name one-oxide ore of each-of them.

What chemical principle is involved in choosing a reducing agent for getting the mètal from its oxide ore? Consider the metal oxides Al_2 O_3 and Fe_2 O_3 , and jústify the choice of the reducing agent.