Give the correct order of initials T or F for following statements. Use T if statement is t and F if it is false.

(P) In Gold Schmidt thennite process, aluminium acts as a reducing agent

(Q) Mg is extracted by electrolysis of aq. solution ${\mathrm{MgCl}}_2$.

(R) Extraction of Pb is possible by smelting

(S) Red bauxite is purified by Serpeck's process

The Goldschmidt thermite Process is a method of extracting metals that uses aluminum powder as the reducing agent to reduce a metal oxide into metal.

Extraction of Pb is possible by smelting It is because aluminum is a highly electropositive element with a great affinity for oxygen, it cannot be removed by smelting.

Hence, option D is correct.