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The sequence of ionic mobility in aqueou...

The sequence of ionic mobility in aqueous solutions is -

A

`Rb^(+) gt K^(+) gt Cs^(+) gt Na^(+)`

B

`Na^(+) gt K^(+) gt Rb^(+) gt Cs^(+)`

C

`K^(+) gt Na^(+) gt Rb^(+) gt Cs^(+)`

D

`Cs^(+) gt Rb^(+) gt K^(+) gt Na^(+)`

Text Solution

Verified by Experts

The correct Answer is:
D
As smaller the size of cation, higher will be hydration and its effective size will increase so mobility in aqueous solution will decrease.
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Knowledge Check

  • The sequence of ionic mobility in aqueous solution is

    A
    `Rb^(+)gt K^(+) gt Cs^(+) gt Na^(+)`
    B
    `Na^(+) gt K^(+) gt Rb^(+) gt Cs^(+)`
    C
    `K^(+) gt Na^(+) gt Rb^(+) gt Cs^(+)`
    D
    `Cs^(+) gt Rb^(+) gt K^(+) gt Na^(+)`

  • The sequence of ionic mobilty in the aqueous solution is

    A
    `K^(+) gt Na^(+) gt Rb^(+) gt Cs^(+)`
    B
    `Cs^(+) gt Rb^(+) gt K^(+) gt Na^(+)`
    C
    `Rb^(+) gt K^(+)gt Cs^(+) gt Na^(+)`
    D
    `Na^(+) gt K^(+) gt Rb^(+) gt Cs^(+ )`

  • The seqeunce of ionic mobility in the aqueous solution is

    A
    `K^(+)gtNa^(+)gtRb^(+)gtC s^(+)`
    B
    `Cs^(+)gtRb^(+)gtK^(+)gtNa^(+)`
    C
    `Rb^(+)gtK^(+)gtCs^(+)gtNa^(+)`
    D
    `Na^(+)gtK^(+)gtRb^(+)gtCs^(+)`

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    Which of the following alkali metal ions has the lowest ionic mobility in aqueous solutions?

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