Question

Buffer solutions have constant acidity and alkalinity because :

• A. acids and alkalies in these solutions are shielded from attack by other ions
• B. they have large excess of $H^+$ or OH' ions
• C. they have fixed value of pH
• D. these give unionised acid or base on reaction with added acid or alkali

Answer 1

Answer: (D)

these give unionised acid or base on reaction with added acid or alkali

Answer 2

Answer (d) these give unionised acid or base on reaction with added acid or alkali