Which of the following alkali metal ions in aqueous solution is the best conductor of electricity ?A. `Li^(+)`B. `Na^(+)`C. `K^(+)`D. `Cs^(+)`

Which of the following alkali metal ions in aqueous solution is the be

1.	Which of the following alkali metal ions in aqueous solution is the best conductor of electricity ?A. `Li^(+)`B. `Na^(+)`C. `K^(+)`D. `Cs^(+)`
Answer» Correct Answer - D Extent of hydration of ions decreases on moving down the group from top to bottom, `Cs^(+)` undergoes least hydration and hence has highest ionic mobility.

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Which of the following alkali metal ions in aqueous solution is the best conductor of electricity ?A. `Li^(+)`B. `Na^(+)`C. `K^(+)`D. `Cs^(+)`

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