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The increasing order of ionic mobilities...

The increasing order of ionic mobilities is/are given by

A

`K^(+)ltNa^(+)ltLi^(+)`

B

`Li^(+)ltNa^(+)ltK^(+)`

C

`Na^(+)ltMg^(2+)ltAl^(3+)`

D

`Al^(3+)ltMg^(2+)ltNa^(+)`

Text Solution

Verified by Experts

The correct Answer is:
A

The extent of hydration increases with decreases in ionic size. Thus extent of hydration varies in the order : `Li^(+)gtNa^(+)gtK^(+)` and so also size of ions.
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