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Chemistry Question on GROUP 1 ELEMENTS

The ionic mobility of alkali metal ions in aqueous solution is maximum for :

A

K+K^{+}

B

Rb+Rb^{+}

C

Li+Li^{+}

D

Na+Na^{+}

Answer

Rb+Rb^{+}

Explanation

Solution

Li+Li^{+} is having largest hydrated ionic size while Rb+Rb^{+} is having smallest. Smaller the size, greater the mobility.