Oxidation number of As in H_2 AsO_4^ - is - Vidyadip

MCQ

Oxidation number of As in ${H_2}AsO_4^ - $ is

A
$6$
B
$7$
✓
$5$
D
$9$

✓

Answer

Correct option: C.

$5$

c
(c) Oxidation number of $As$ in ${H_2}AsO_4^ - $

$2 + x - 8 = - 1$

$x - 6 = - 1$

$x = 5$

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