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प्रश्न
A solution on adding phenolphthalein turns pink; its pH value is ______.
विकल्प
7
More than 7
Less than 7
Cannot be determined.
MCQ
रिक्त स्थान भरें
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उत्तर
A solution on adding phenolphthalein turns pink; its pH value is more than 7.
Explanation:
The phenolphthalein indicator turns pink only in a basic medium. Since all basic or alkaline solutions have a pH value greater than 7.
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