Ionic EquilibriumHard
Question
Aqueous solutions of HNO3, KOH, CH3COOH, and CH3COONa of identical concentrations are provided. The pair (s) of solutions which form a buffer upon mixing is(are)
Options
A.HNO3 and CH3COOH
B.KOH and CH3COONa
C.HNO3 and CH3COONa
D.CH3COOH and CH3COONa
Solution
In option (C), if HNO3 is present in limiting amount then this mixture will be a buffer. And the mixture given in option (D), contains a weak acid (CH3COOH) and its salt with strong base NaOH, i.e. CH3COONa.
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