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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
Those substances whose smell (or odour) changes in acidic or basic solutions are called ______ indicators.
If someone is suffering from the problem of acidity after overeating, which of the following would you suggest as remedy?
Lemon juice, Vinegar, Baking soda solution
Give reason for your choice.
What colour will the universal indicator show if you add it to the following substance?
Potassium hydroxide, pH = 12
Acids have a pH ______ than 7.
What is a universal indicator?
Explain how pH change in the lake water can endanger the lives of aquatic animals (like fish).
The pH values of three acids A, B and C having equal molar concentrations are 5.0, 2.8 and 3.5 respectively. Arrange these acids in order of the increasing acid strengths.
Name two common antacids.
A solution turns blue litmus red. Its pH is likely to be ______.
Fresh milk has a pH of 6. When milk changes into curd, the pH value will ______.
