Which of the following mixture is not a buffer solution

1.	Which of the following mixture is not a buffer solution
Answer» `100 mL` of `0.5 N CH_(3)COOH + 100 mL ` of `0.05 N NaOH` `100 mL` of `0.6 N HCN+ 100 mL` of `0.4 NaOH` `100 mL` of `0.5N NH_(4)OH + 10 mL` of `0.2 NCH_(3)COOH` `100 mL` of `0.4 N HCL + 100 mL` of `0.4N NaOH` Solution :A mixutre of storng acid and STRONG base does not acts as buffer

Discussion