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Oxidation number of As in H(2)"As"O(4)^(...

Oxidation number of As in `H_(2)"As"O_(4)^(-)` is

A

`6`

B

`7`

C

`5`

D

`9`

Text Solution

Verified by Experts

The correct Answer is:
C
Let `x` be oxidation number of As in `H_(2)AsO_(4)^(-)`.
`:. 2+x-8=-1`
or `x-6=-1`
or `x=5`
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