Which of the following is a buffer – InterviewSolution

1.	Which of the following is a buffer
Answer» `NAOH + CH_(3)COONa` `NaOH + Na_(2)SO_(2)` `K_(2)SO_(4) + H_(2)SO_(4)` `NH_(4)OH + CH_(3)COONH_(4)` SOLUTION :Buffer is mixture of weak base and its ACID salt.

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