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Acids, Bases and Salts — Science STD 7 — Question

Gujarat BoardEnglish MediumSTD 7ScienceAcids, Bases and Salts1 Mark
MCQ
On adding phenolphthalein indicator to a colourless solution, no change is observed. What is the nature of this solution?
  • A
    Basic
  • B
    Either acidic or basic
  • ✓
    Either acidic or neutral
  • D
    Either basic or neutral
✓

Answer

Correct option: C.
Either acidic or neutral
Explanation: Phenolphthalein gives pink colour in basic solution. It remains colourless in acidic or neutral solution.
Conclusion: Phenolphthalein only gives colour in basic medium.

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