CBSE · Class 7 · Science · Acids, Bases and SaltsWhat happens to phenolphthalein indicator when a few drops of a basic solution are added to it?
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Total Attempts: 2
Accuracy Rate: 100%
Step-by-Step Solution
Phenolphthalein gives a pink colour in basic solutions, while it remains colourless in acidic solutions.
Detailed Options Breakdown
Option : It turns red
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Acids, Bases and Salts.
Option 1: It turns pink (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 2: It turns yellow
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Acids, Bases and Salts.
Option 3: It remains colourless
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Acids, Bases and Salts.
💡 Study Guide: This question tests core syllabus concepts from Acids, Bases and Salts. For formulas, key summaries, and mock exam reference guides, read the full Acids, Bases and Salts Revision Notes.