Question

3. (a) Complete the following equation:
Sulphur dioxide + Water
X Х
tested with
blue litmus
tested with
red litmus
Observation:
(b) Identify the nature of the substance 'X'.
What do you conclude from the above reaction?​

Answer 1

Answer:

Litmus is a water-soluble mixture of different dyes extracted from lichens. It is often absorbed onto filter paper to produce one of the oldest forms of pH ...