Question

Among the cation H⁺, Li⁺, Na⁺ and K⁺, the one with highest ionic mobility and another with lowest ionic mobility respectively are: 

(a) [H⁺, K⁺] 

(b) [K⁺, H⁺] 

(c) [LI⁺, Na⁺] 

(d) [H⁺, Li⁺] 

Answer 1

The correct option: (d) [H⁺, Li⁺]

Explanation:

H⁺ ion has the maximum ionic mobility which is explainable by Grothus mechanics, Li⁺ having the maximum charge density, is the most hydrated ion among the lot and hence the lowest ionic mobility