Teaching UKPSC Lecturer Mock Test Series 2024 Chemistry

NH4OH का pKb 5 है। 10 mL 0.3 M NH4OH और 200 mL 0.1 M (NH4)3PO4 के मिश्रण का pH क्या होगा?

1
5
2
5.3010
3
6.3010
4
7.6987
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