Statement In the reactions , `3As_(2)S_(3)rarr28HNO_(3)+4H_(2)Orarr6H_(3)AsO_(4)+9H_(2)SO_(4)+28NO` electrons transferred are `84`.
Explanation As is oxidised from `+3` to `+5` and sulphur from `-2` to `+6`

Options

A. `S` is correct but `E` is wrong.
B. `S` is wrong but `E` is correct.
C. Both `S` and `E` are correct and `E` is correct explanation of `S`
D. Both `S` and `E` are correct but `E` is not correct explanation of `S`.

Answer

C

Explanation

`{:((As^(3+))_(2)rarr2As^(5+)+4e),((S^(2-))_(3)rarr3S^(6+)+24e),(bar([As_(2)S_(3)rarr2As^(5+)+3S^(6+)+28e]xx3)),([3e+N^(5+)rarrN^(2+)]xx28):}`