Which of the following indicators are affected in basic medium?Blue LitmusRed litmusMethyl orangePhenolphthalein
Question
Which of the following indicators are affected in basic medium?
- Blue Litmus
- Red litmus
- Methyl orange
- Phenolphthalein
Solution
In a basic medium, the following indicators are affected:
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Blue Litmus: Blue litmus paper is used to test for acids. It will remain blue in a basic medium as bases do not affect blue litmus paper.
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Red Litmus: Red litmus paper is used to test for bases. In a basic medium, red litmus paper will turn blue.
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Methyl Orange: Methyl orange is a pH indicator frequently used in titrations. In a basic medium, it turns yellow.
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Phenolphthalein: Phenolphthalein is another commonly used indicator for titrations, and also a universal indicator. In a basic medium, phenolphthalein will turn a fuchsia color.
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