Question

Match the elements of list 1 with the elements of list 2.

Answer 1

(A) For the titration of a strong acid with strong base, following indicators are used.
Methyl Orange (pH range 3.1 - 4.4)
Methyl Red (pH range 4.2 - 6.3)
Phenolphthalein (pH range 8.3-10)
(B) For the titration of weak acid with strong base
Phenolphthalein (pH range 8.3-10)
(C) For the titration of strong acid with weak base
Methyl Orange (pH range 3.1 - 4.4)
Methyl Red (pH range 4.2 - 6.3)
(D) No general indicator is suitable for the titration of Weak acid.