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Use the given data E(Cr(2)O(7)^(2-)|Cr...

Use the given data
`E_(Cr_(2)O_(7)^(2-)|Cr^(3+))^(@)=+1.33V, E_(Cl_(2)|Cl^(-))^(@)=+1.36V`
`E_(MnO_(4)^(-)|Mn^(2+))^(@)=+1.51V, E_(Cr^(3+)|Cr)^(@)=-0.74V` find out in which option the order of reducing power is correct -

A

`Cr^(3+) lt Cl^(-) lt Mn^(2+) ltCr`

B

`Mn^(2+) lt Cl^(-) lt Cr^(3+) lt Cr`

C

`Cl^(-) lt Cr_(2)O_(7)^(2-) lt MnO_(4)^(-)`

D

`Mn^(2+) lt Cr^(3+) lt Cl^(-) lt Cr`

Text Solution

Verified by Experts

The correct Answer is:
B
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Use the given data - E_(Cr_(2)O_(7)^(2-)|Cr^(3+))^(@)=+1.33V, E_(Cl_(2)|Cl^(-))^(@)=+1.36V E_(MnO_(4)^(-)|Mn^(2+))^(@)=+1.51V, E_(Cr^(3+)|Cr)^(@)=-0.74V and find out the most stable ion in its reduced form -

Use the given data - E_(Cr_(2)O_(7)^(2-)|Cr^(3+))^(@)=+1.33V, E_(Cl_(2)|Cl^(-))^(@)=+1.36V E_(MnO_(4)^(-)|Mn^(2+))^(@)=+1.51V, E_(Cr^(3+)|Cr)^(@)=-0.74V and find out the most stable oxidised species -

Using the data find out the strongest reducing agent - E_(Cr_(2)O_(7)^(2-)|Cr^(+))^(@)=+1.33V, E_(Cl_(2)|Cl^(-))^(@)=+1.36V E_(MnO_(4)^(-)|Mn^(2+))^(@)=+1.51V, E_(Cr^(2+)|Cr)^(@)=-0.74V

Given : E_(Cl_(2)|Cl^(-))^(@)=1.36V, E_(Cr^(3+)|Cr)^(@)=-0.74V, E_(Cr_(2)O_(7)^(2-)|Cr^(3+))^(@)=1.33V, E_(MnO_(4)^(-)|Mn^(2+))^(@)=1.51V . Among the following the strongest reducing agent is -

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