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दिया गया है E(Cl(2)//Cl^(-))^@=1.36V,E(C...

दिया गया है `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`
निम्नलिखित में से सबसे प्रबलतम अपचायक है:

A

`Mn^(2+)`

B

`Cr^(3+)`

C

`Cl^(-)`

D

`Cr`

Text Solution

Verified by Experts

The correct Answer is:
D
दिए गए आंकड़ों के अनुसार Cr का मानक अपचयन विभव न्यूनतम है। मानक अपचयन विभव को कम करने पर अपचायक प्रबल हो जाता है। इसलिए Cr प्रबलतम अपचायक है।
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Given E_(Cl_(2) //Cl^(-))^(@) = 1.36 V , E_(Cr^(3 +)// Cr)^(@) = -0.74 V , E_(Cr_(2) O_(7)^(2) // Cr^(3+))^(@) = 1.33 V , E_(Mn O_(4)^(-)// Mg^(2+))^(@)= 1.51 V , Among the following , the strongest reducing agent is

Knowledge Check

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    A
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    B
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