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प्रश्न
In basic solution turmeric indicator paper changes from yellow to _______.
पर्याय
blue
green
yellow
red
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उत्तर
In basic solution turmeric indicator paper changes from yellow to red.
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संबंधित प्रश्न
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| Sulphuric acid | : Red |
| Metal polish | : Dark blue |
| Washing-up liquid | : Yellow |
| Milk of magnesia | : Light blue |
| Oven cleaner | : Purple |
| Car batter acid | : Pink |
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State whether the following statement is true or false. Correct the false statement.
Phenolphthalein is a natural indicator.
Neutral substances do not bring about any change in colour of indicators.
Write a note on:
Phenolphthalein
