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pK(h) would be minimum for the salt...

`pK_(h)` would be minimum for the salt

A

KCl

B

`NH_(4)NO_(3)`

C

`NH_(4)CN`

D

`NaCN`

Text Solution

Verified by Experts

The correct Answer is:
C
If both the cation and anion of salt on reaction with water give weak acid and weak base, value of `K_(h)` of such type of salt is highest. Hence, `pK_(h)` value is minimum. Hence, `NH_(4)CN` has minimum value of `pK_(h)`.
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