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Consider the following reduction process...

Consider the following reduction processes :
`Zn^(2+)+2e^(-)toZn(s), E^(o)=-0.76 V`
`Ca^(2+)+2e^(-)toCa(s),E^(o)=-2.87 V`
`Mg^(2+)+2e^(-)toMg(s),E^(o)=-2.36 V`
`Ni^(2+)+2e^(-)toNi(s), E^(o)=-0.25 V
The reducing power of the metals increases in the order :

A

Ni lt Zn lt Mg lt Ca

B

Ca lt Zn lt Mg lt Ni

C

Zn lt Mg lt Ni lt Ca

D

Ca lt Mg lt Zn lt Ni

Text Solution

Verified by Experts

The correct Answer is:
A
`E_(Zn//Zn^(2+))^(@) : +0.76` `E_(Ca//Ca^(2+))^(@) : +2.87`
`E_(Mg//Mg^(2+))^(@) : +2.36` `E_(Ni//Ni^(2+))^(@) : +0.25`
Reducing power `Ca gt Mg gt Zn gt Ni`
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