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pKb for NH4OH at certain temperature is 4.74. The pH of basic buffer containing equimolar concentration of NH4OH and NH4Cl will be

(A) 7.74 

(B) 4.74 

(C) 2.37 

(D) 9.26

1 Answer

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Best answer

Correct option (D) 9.26

Explanation : 

The above solution is an example of basic buffer

Now, concentration of NH4Cl = Cocentration of NH4OH

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