Question

Al, Mg are the example of two metals which are used for the reduction in metallurgical process.
If true enter 1,else enter 0.

Answer 1

Reduction by Electrolysis

Reduction of highly electropositive (reactive) metals like K, Na, Ca, Mg, Al oxides/halides.

Electrolysis of fused metallic salts

Example: Extraction of Aluminium $\left[A{l}_2{O}_3.2H_{2}O\right]$

When electric current is passed through the concentrated ore, the reaction takes place as follows:

$A{l}_2{O}_3\to 2A{l}^{+3}+3O_2^{-2}$

At Cathode: $2A{l}^{+3}+6e^{-}\to 2Al$

At Anode : $3O_2--6e^{-}\to 3\left[O\right]\to 3O_2$ (gas)

Product at cathode: Pure aluminium metal

Product at anode : Oxygen gas

The statement is correct.
Answer is 1