Additin of sodium hydroxide solution to a weak acid (HA)results in a buffer of pH 6. If ionition constant of HA is 10$-$5, the ratio of salt to acid concentration in the buffer solution will be :

Question

Additin of sodium hydroxide solution to a weak acid (HA)results in a buffer of pH 6. If ionition constant of HA is 10^$-$5, the ratio of salt to acid concentration in the buffer solution will be :

4 : 5