If the sum of the coefficients in the expansion of is 1024, then the value of the greatest coefficient in the expansion is
356
252
210
120
Given
The greatest coefficient is
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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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