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As(2)S(3)+HNO(3)toH(3)AsO(4)+H(2)SO(4)+N...

`As_(2)S_(3)+HNO_(3)toH_(3)AsO_(4)+H_(2)SO_(4)+NO` the element which is oxidised in the reaction is / are

A

As

B

S

C

N

D

As and S

Text Solution

Verified by Experts

The correct Answer is:
D
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Explore conceptually related problems

One mole of As_(2)S_(3) is oxidized by HNO_(3) to H_(3)AsO_(4) and H_(2)SO_(4). HNO_(3) is converted into NO. The moles of HNO_(3) required are :

S+HNO_(3)(Dil.) to H_(2)SO_(4)+Nouarr

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

Assertion: In the reaction, 3As_(2)S_(3)+28HNO_(3)+4H_(2)O rarr 6H_(3)SAsO_(4)+9H_(2)SO_(4)+28NO electrons transferred are 84 . Reason: As is oxidised from +3 to +5 and sulphur from -2 to +6 .

Conc. HNO_(3)+H_(2)SO_(4) mixture gives

As_(2)S_(3)+7NaClO_(3)+12NaOHrarr2Na_(3)AsO_(4)+7NaClO+3Na_(2)SO_(4)+6H_(2)O The equivalent weight of As_(2)S_(3) is