Question

Which of the following combinations will make a buffer solutions ?
CH,COONa (2 mol) + HCl (1 mol)
(i) CH,COOH (2 mol) + NaOH (1 mol)
(ii) CH,COOH (1 mol) + CH,COONa (1 mol)
(1) (iii)
(2) (i), (ii)
(3) (ii), (iii)
(4) (i), (ii), (iii)​

Answer 1

HERE IS UR ANSWER

3) ii , iii

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