Question

Name one salt whose solution has pH more than 7 and a salt whose solution has pH less than 7

Answer 1

Salts of weak acid and and strong base gives basic solutions Which has pH Greater than 7
example :sodium Carbonate (Na2CO3)
Salts of weak base and strong acid gives acidic solutions which have pH Less than 7.
example : Ammonium Chloride (NH4Cl)

Answer 2

pH more than 7 ⇒ Na₂CO₃ (sodium Carbonate)

Salt of weak acid & strong base.

pH more less than 7 ⇒ NH₄Cl (Ammonium Chloride)

Salt of weak base & strong acid.