The area of triangle formed by the tangents from the point (3,2) to the hyperbola and the chord of contact w.r.t. the point (3,2) is __________.
8
9
7
2
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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