The metal extracted by the electrolysis of its fused salt is

The modern method for the manufacture of steel is:

Predict the physical state of the metal $M$ obtained in the following reduction reaction shown by the Ellingham diagram: $MO(s) + C(s) \rightarrow M(?) + CO(g)$.

Assertion : Extraction of iron metal from iron oxide ore is carried out by heating with coke.
Reason : The reaction,
$Fe_2O_{3(s)} \to Fe_{(s)} + 3/2 O_{2(g)}$ is a spontaneous process.

Furnaces are lined with $CaO$ because

Aluminium has a great affinity for oxygen and its oxidation is an exothermic process. This fact is made use of in