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The standard oxidation potential of Zn a...

The standard oxidation potential of Zn and Ag in water at `25^(@)C` are :
`Zn(s) toZn^(2+)(aq)+2e^(-), E^(@)=+0.76" V "`
`Ag(s) to Ag^(+)(aq)+e^(-), E^(@)=-0.80" V "`.
Which of the following reaction will initially take place ?

A

`Zn^(2+)(aq)+Ag^(+)(aq) to Zn(s) +Ag(s)`

B

`Zn(s)+2Ag(s) to 2Zn^(2+)(aq)+Ag^(+)(aq)`

C

`Zn(s)+2Ag^(+)(aq) to Zn^(2+)(aq)+2Ag(s)`

D

`Zn^(2+)(aq)+2Ag(s) to 2A^(+)(aq)+Zn(s)`

Text Solution

Verified by Experts

The correct Answer is:
C
(c ) In this reaction, Zn (s) is oxidised to `Zn^(2+)` (aq) ions and `Ag^(+)` (aq) ions are reduced to Ag (s).
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