WBJEE 2016 Chemistry Solved Paper

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Question : 40 of 40
 
Marks: +1, -0
In which of the following mixed aqueous solutions pH = pKa at equilibrium?
(1) 100 ml of 0.1M CH3COOH + 100 ml of 0.1M CH3COONa
(2) 100 ml of 0.1M CH3COOH + 50 ml of 0.1M NaOH
(3) 100 ml of 0.1M CH3COOH + 100 ml of 0.1M NaOH
(4) 100 ml of 0.1M CH3COOH + 100 ml of 0.1M NH3
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