1.

Moar conductivites of `Li^(+),Na^(+),K^(+) "and" Rb^(+)` ions in aqueous solutions are in the following order.A. `Rb^(+) gt K^(+) gt Na^(+) gt Li^(+)`B. `Li^(+) gt Rb^(+) gt K^(+) gt Na^(+)`C. `Li^(+) gt Na^(+) gt K^(+)=Rb^(+)`D. `Li^(+) gt Na^(+)=K^(+) lt Rb^(+)`

Answer» Correct Answer - A
The molar conducity of ions in aqueous solution is inversely related to the dgree of hydration which decreases on moving down the group on accound of the decreases of charge density.


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