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17/09/2020 8:32 pm
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An acidic buffer is obtained on mixing :
(1) 100 mL of 0.1 M CH3COOH and 200 mL of 0.1 M NaOH
(2) 100 mL of 0.1 M CH3COOH and 100 mL of 0.1 M NaOH
(3) 100 mL of 0.1 M HCl and 200 mL of 0.1 M CH3COONa
(4) 100 mL of 0.1 M HCl and 200 mL of 0.1 M NaCl
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17/09/2020 8:34 pm
Correct answer: (3) 100 mL of 0.1 M HCl and 200 mL of 0.1 M CH3COONa
Explanation:
Mixture of weak acid and its salt with strong base acts as buffer solution.