Question

Which of the following alkali metal ions has
lowest ionic mobility in aqueous solution ?
(a) Rb⁺ (b) Cs⁺
(c) Li⁺ (d) Na⁺

Answer 1

Answer:

Na⁺ is right answer it's okk broo

Answer 2

(c) Li⁺

Explanation:

Among the given ions, Lithium (Li+) ions have the the lowest ionic mobility in aqueous solution as it gets the most hydrated, causing it to become heavier and less mobile.

Option C is the answer.