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200 ml of an aqueous solution contains `0.1 M NaOH` and `0.2M NH_(4)OH(aq)`. In a titration experiment, `0.1 MHCI (aq)` solution is slowly added to it. Given `K_(b) (NH_(4)OH) = 10^(-5)`
On adding `400 mL` of HCI solution (from start) pH of solution will be finally:

A

5

B

7

C

9

D

11

Text Solution

Verified by Experts

The correct Answer is:
c
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