ScienceCLASS 7CBSE
answered 27 Mar 2026On 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.VERIFIED ANSWERfact-checked by tutors
The answer is (c) Either acidic or neutral
Explanation:
The colour of the phenolphthalein indicator will not change with an acidic or neutral solution.