Give the correct order of initials T or F for following statements. Use T if statements is true and F if it is false.
`(i)` In gold schmidt thermite process aluminium acts as a reducing agent.
`(ii) Mg` is extracted by electrolysis of aq. solution of `MgCl_(2)`.
`(iii)` Extraction of Pb is possible by carbon reduction method
`(iv)` Red Bauxite is purified by Serpeck's process.

Options

A. T T T F
B. TF FT
C. F T T T
D. TFTF

Answer

D

Explanation

`(i) Cr_(2)O_(3)+2Al(R.A.) overset(Delta)to Al_(2)O_(3)+2Cr, Delta H= - ve`
(ii) Mg is extracted by electrolysis of fused `MgCl_(2)` and NaCl
(iii) `PbS+(3)/(2) O_(2) to PbO+SO_(2)`
`PbO+C to Pb+CO`
(iv) Red Bauxite is purified by Baeyer's process