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प्रश्न
The indicator that changes to pink colour in an alkaline solution is ______.
विकल्प
Blue Litmus
Methyl Orange
Red Litmus
Phenolphthalein
MCQ
रिक्त स्थान भरें
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उत्तर
The indicator that changes to pink colour in an alkaline solution is phenolphthalein.
Explanation:
It is an indicator of acid and base that is colorless in acidic solutions but turns pink in alkaline ones.
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अध्याय 3: Study of Acids, Bases and Salts - Questions from ICSE Examinations [पृष्ठ ७७]
