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The seqeunce of ionic mobility in the aq...

The seqeunce of ionic mobility in the 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^(+)`

Text Solution

Verified by Experts

The correct Answer is:
D
Bigger the size , lower is the extent of hydration , smaller is the mass of the hydrated species and hence higher is the ionic mobility in the aqueous solution . Thus option (d) is correct .
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Knowledge Check

  • 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 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^(+)`

  • Unit of ionic mobility is

    A
    `m^(2)sec^(-1)"volt"^(-1)`
    B
    `ms^(-1)`
    C
    `"m sec"^(-1)" volt"`
    D
    `"m sec"^(-1)" volt"`

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    In the given below alkali metal ions which has lowest ionic mobility in aqueous solutions?

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