Question

Equimolar solutions of the following substances were prepared separately. Which one of these will record the highest pH value?

(a) BaCl₂ 

(b) AlCl₃

(c) LiCl 

(d) BeCl₂

Answer 1

The correct option is: (a) BaCl₂ 

Explanation:

BaCl₂ is made up of Ba(OH)₂ and HCl.

AlCl₃ is made up of Al(OH)₃ and HCl.

LiCl is made up of LiOH and HCl.

BeCl₂ is made up of Be(OH)₂ and HCl.

Ba(OH)₂ is strongest base among the given options thus have maximum pH.