Question

Which will not show common ion effect on addition of hcl among ch3cooh h2s c6h5cooh and h2so4?

Answer 1

Correct option is 3) NH4OH and NH4Cl

​Explanation : To the weak base, ​NH4OH, if ​ NH4Cl is added which provides the common NH4+ ions, dissociation of ​NH4OH is suppressed.

NH4OH ⇔NH4+ + OH-

NH4Cl⇔NH4+ + Cl-