ScienceClass 7CBSE
Q
On adding the phenolphthalein indicator to a colourless solution, no change is observed. What is the nature of this solution? (a) Basic (b) Either acidic or basic (c) Either acidic or neutral (d) Either basic or neutral
A
The answer is (c) Either acidic or neutral
Explanation:
The colour of the phenolphthalein indicator will not change with an acidic or neutral solution.