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Four successive members of first row tra...

Four successive members of first row transition element are listed belw. Which one of them is expected to have highest `E_((M^(3+))/(M^(2+))^(ɵ)` value?

A

`Cr(Z=24)`

B

`Mn(Z=25)`

C

`Fe(Z=26)`

D

`Co(Z=27)`

Text Solution

Verified by Experts

The correct Answer is:
D
`(d) E_(Cr^(3+)//Cr^(2+))^(@)=-0.41VE^(@)`
E_(Fe^(3+)//Fe^(2+))^(@)=+0.77V,E_(Mn^(3+)//Mn^(2+))^(@)=+1.57V`
E_(Co^(3+)//Co^(2+))^(@)=+1.97V`
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Knowledge Check

  • Four successive members of the first row transition elements are listed below with atomic numbers. Which one of them is expected to have the highest E_(M^(3+)//M^(2+))^(0) value

    A
    `Cr(Z=24)`
    B
    `Mn(Z=25)`
    C
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    D
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    A
    Mn(Z=25)
    B
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    C
    Co(Z=27)
    D
    Cr(Z=24)

  • Four successive members of the first row transition elements are listed below with their atomic number. Which one of them is expected to have the highest third ionisation enthalpy ?

    A
    Vanadium `(Z = 23)`
    B
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    C
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    D
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