Question

Match the List I (Indicator) with List II(pH range):

Answer 1

The working pH range for indicators is as follows:

Phenolphthalein- 8.3-10.0

Litmus- 5.0-8.0

Methyl red- 4.2- 6.3

Methyl orange- 3.1-4.4
so the correct answer will be (A-3),(B-4),(C-1),(D-2).