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Given : E^(@) (Cu^(2+//Cu) = 0.337V and ...

Given : `E^(@) (Cu^(2+//Cu)` = 0.337V` and `E^(@) (Sn^(2+//Sn) = -0.136V`. Which of the following statements is correct?

A

`Cu^(2+)` ions can be reduced by `H_(2)(g)`

B

`Cu` can be oxidized by `H^(+)`

C

`Sn^(2+)` ions can be reduced by `H_(2)(g)`

D

`Cu` can reduce `Sn^(2+)`

Text Solution

Verified by Experts

The correct Answer is:
A
As `E_(Ce^(+))^(@)toCu=0.337VgtE_(H^(+)//H_(2))^(0)`
`therefore` `Cu^(2+)` can be reduced by `H_(2)`
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Knowledge Check

  • Given: E^(@)(Cu^(2+) + Cu) = 0.337 V and E^(@)(Sn^(2+)|Sn) = -0.136 V. Which of the following statements is correct?

    A
    `Cu^(2+)` ions can be reduced by `H_(2)` (g)
    B
    Cu can be oxidized by `H^(+)`
    C
    `Sn^(2+)` ions can be reduced by `H_(2) (g)`
    D
    Cu can reduce `Sn^(2+)`

  • Given: E^(@)(Cu^(2+) + Cu) = 0.337 V and E^(@)(Sn^(2+)|Sn) = -0.136 V. Which of the following statements is correct?

    A
    `Cu^(2+)` ions can be reduced by `H_(2)` (g)
    B
    Cu can be oxidized by `H^(+)`
    C
    `Sn^(2+)` ions can be reduced by `H_(2) (g)`
    D
    Cu can reduce `Sn^(2+)`

  • Given E_(Ag^(+)//Cu)^(@)=0.80V,E_(Hg^(2+)//Mg)^(@)=0.79V E_(Cu^(2+)//Cu)^(@)=0.34V,E_(Hg^(2+)//Hg)=0.34V Which of the following statement (s) is /are incorrect ?

    A
    `AgNO_(3)` can be stored in a copper vessel .
    B
    `Cu(NO_(3))_(2)` can be stored in a magnesium vessel .
    C
    `Cu(NO_(3))_(2)` can be stored in a silver vessel .
    D
    `HgCl_(2)` can be stored in a copper vessel .
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