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E(cell)^(Theta) for some half-cell react...

`E_(cell)^(Theta)` for some half-cell reactions are given below. On the basis of these mark the correct answer.
(a) `H_((aq))^(+)+e^(-) to (1)/(2) H_(2(g))E_(cell)^(Theta)=0.00V`
(b) `2H_(2)O_((l)) toO_(2(g))+4H_((aq))^(+)+4e^(-),E_(cell)^(Theta)=1.23V`
(c) `2SO_(4)^(2-) to S_(2)O_(8(aq))^(2-) +2e^(-),E_(cell)^(Theta)=1.96V`

A

In dilute sulphuric acid solution, hydrogen will be reduced at cathode.

B

In concentrated sulphuric acid solution, water will be oxidised at anode.

C

In dilute sulphuric acid solution, water will be oxidised at anode.

D

In dilute sulphuric acid solution, `SO_(4)^(2-)` ion will be oxidized to tetrathionate ion at anode.

Text Solution

Verified by Experts

The correct Answer is:
A, C
In dilute sulphuric acid solution, water will be oxidised at anode.
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