Which of the following will act as buffer – InterviewSolution

1.	Which of the following will act as buffer
Answer» `NaCl+NAOH` Borax+ Boric acid `NaH_(2)PO_(4)+Na_(2)HPO_(4)` `NH_(4)Cl+NH_(4)OH` Solution :(b) and (d) are correct because they have COMMON ION and one of them is WEAK electrolyte. (a) is not correct because NaCl and NaOH both are strong electrolytes and will not have common ion effect. © isnot correct because both are salt and strong electrolytes., cannot from buffer solution.

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