Statement 1: Aluminothermy is used for extraction of chromium from chromium oxide.Statement 2: Alumina has a high melting point.

Correct Explanation: ΔfGo for formation of Al2O3 is much more -ve than that of Cr2O3.Alumino thermite is a process of extracting metals by reduction of a metal oxide to form metal using aluminium powder, the aluminium acts as a reducing agent. It is an exothermic reaction which liberates a large amount of heat. Practically, this method can be used to reduce all the metallic oxides, with oxide of magnesium being the only exception.