Equilibrium Question 755

Question: The best indicator for detection of end point in titration of a Weak acid and a strong base is

Options:

A) Methy1 orange (3 to 4)

B) Methy1 red (5 to 6)

C) Bromothymol blue (6 to 7.5)

D) Phenolphthalein (8 to 9.6)

Show Answer

Answer:

Correct Answer: D

Solution:

Phenolphthalein is an indicator if the baseos strong, because strong base immediately changes the pH at end point.



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