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The correct order of mobility of alkali ...

The correct order of mobility of alkali metal ions in aqueous solution is

A

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

B

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

C

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

D

`Na^(+) gt K^(+) gt Na^(+) gt Li^(+)`

Text Solution

Verified by Experts

The correct Answer is:
B
(b) is the correct answer. `Rb^(+)` ion is least hydrated while `Li^(+)` ion is maximum hydrated.
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The correct order of mobility of alkali ions in aqueous solution is :

S_(2) : Plaster of paris is a hemihydrate of calcium sulphate obtained by heating the gypsum above 393K . S_(2) : Sodium carbonate is used in water softening. S_(4) : The order of mobilities of the alkali metal ions in aqueous solutions is Li^(+)gtNa^(+)gtK^(+)gtRb^(+)gtCs^(+)

The CORRECT order of the mobility of the alkali metal ions in aqueous solution is A) Rb^+ > K^+ > Na^+ > Li^+ B) Li^+ > Na^+ > K^+ > Rb^+ C) Na^+ > K^+ > Rb^+ > Li^+ D) K^+ > Rb^+ > Na^+ > Li^+