Question

Which of the following is true for the titration of a weak acid with a strong base? O a. The pH at the equivalence point is acidic. b. A buffer solution is formed before the equivalence point. OC. The initial pH equals -log (conc. of the acid). Od. The indicator changes its color at the half-neutralization point.

Answer 1

Correct answer is : (b.) A buffer solution is formed before the equivalence point.

Explanation

Option (a.) is incorrect because at equivalence point solution is basic and pH is greater than 7

Option (c.) is incorrect because the pH depends upon acid dissociation constant, K_a, of the weak acid

Option (d.) is incorrect because indicator changes its color at equivalence point indicating that titration is complete.