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प्रश्न
Hibiscus flower is an example for natural indicator.
विकल्प
True
False
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उत्तर
Hibiscus flower is an example for natural indicator- True.
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संबंधित प्रश्न
What is an indicator?
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?
What colour will the universal indicator show if you add it to the following substance?
Potassium hydroxide, pH = 12
How does a universal indicator work?
What do you think will be the pH in the stomach of a person suffering from indigestion: less than 7 or more than 7?
Name two common antacids.
When a solution becomes more acidic, does the pH get higher or lower?
Methyl orange gives ______ colour in an acidic solution.
Using the knowledge of acids and bases, write a secret message with the help of baking soda and beet root. Explain how it works.
(Hint: Prepare baking soda solution in water. Use this solution to write the message on a sheet of white paper with a cotton bud. Rub a slice of fresh beetroot over the message.)
