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If Pkb for CN^- at 25^@C is 4.7. Find th...

If `Pk_b` for `CN^-` at `25^@C` is 4.7. Find the pH of 0.5 M aqueous NaCN solution,

A

12

B

10

C

11.5

D

11

Text Solution

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The correct Answer is:
C
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