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प्रश्न
Turmeric and litmus are ______ acid-base indicators.
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उत्तर
Turmeric and litmus are natural acid-base indicators.
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संबंधित प्रश्न
A milkman adds a very small amount of baking soda to fresh milk. Why does he shift the pH of the fresh milk from 6 to slightly alkaline?
Blue litmus paper is dipped in a solution. It remains blue. What is the nature of the solution? Explain.
The pH of soil A is 7.5 while that of soil B is 4.5. Which of the two soils, A or B, should be treated with powdered chalk to adjust its pH and why?
What is the name of the indicator which can be used for testing the pH of a solution?
Explain the pH change as the cause of tooth decay.
What would you expect the pH of pure water to be?
In basic solution turmeric indicator paper changes from yellow to _______.
Which of the following is not a natural indicator?
Neutral substances do not bring about any change in colour of indicators.
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Phenolphthalein
