The coefficient of in the expansion of is
none of these
If we multiply equations (1), (2), and (3) side by side, on R.H.S. product of terms in each column will contain .
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50 mL of 0.2 M ammonia solution is treated with 25 mL of 0.2 M HCl. If pKb of ammonia solution is 4.75, the pH of the mixture will be : Option: 1 3.75 Option: 2 4.75
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