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
ScienceClass 7CBSEAnswered 27 Mar 2026
Answer
The answer is (c) Either acidic or neutral
Explanation:
The colour of the phenolphthalein indicator will not change with an acidic or neutral solution.
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