Question : The change in color of the moist litmus paper in the given set up is due to
These are the options for the question:
i. presence of acid
ii. presence of base
iii. presence of H⁺(aq) in the solution
iv. presence of Litmus which acts as an indicator
(a) i and ii
(b) Only ii
(c) Only iii
(d) Only iv.
The correct answer is : (c) Only iii
.
