Match the column I with column II and mark the appropriate choice.

Options

A. (A) `rarr` (iii), (B) `rarr` (i), (C) `rarr` (ii), (D) `rarr` (iv)
B. (A) `rarr` (iii), (B) `rarr` (iv), (C) `rarr` (ii), (D) `rarr` (i)
C. (A) `rarr` (i), (B) `rarr` (iii), (C) `rarr` (ii), (D) `rarr` (iv)
D. (A) `rarr` (iv), (B) `rarr` (ii), (C) `rarr` (i), (D) `rarr` (iii)

Answer

B

Explanation

`K_(3)[Fe(OH)_(6)]rarr +3+x-6=0 rArr x= +3`
`K_(2)[FeO_(4)] rarr +2+x-8=0 rArr x= +6`
`FeSO_(4) . (NH_(4))_(2) SO_(4).6H_(2)O`, in `FeSO_(4) rarr x -2 = 0 rArr x= +2`
`Fe_(3)O_(4)=FeO+Fe_(2)O_(3) rarr x-2+2x-6=0`
`rArr 3x=+8 rArr x = +8//3`