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Which pair will show common ion effect ?...

Which pair will show common ion effect ?

A

`BaCl_2 +Ba(Na_3)_2`

B

NaCl +HCl

C

`NH_4OH + NH_4Cl`

D

AgCN + KCN

Text Solution

Verified by Experts

The correct Answer is:
C
Since: `NH_4OH` is a weak electrolyte whereas `NH_4Cl` is a strong electrolyte.
`NH_4OH` is weak base to which `NH_4Cl` is added which provides common `NH_4^(+)` ion dissociation of `NH_4OH` is suppressed.
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