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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
Name an indicator which is red in acid solution but turns blue in basic solution.
A beaker of concentrated hydrochloric acid has a pH of 1. What colour will full range universal indicator turn if it is added to this beaker? Is it a strong or a weak acid?
Two drinks P and Q gave acidic and alkaline reactions, respectively. One has a pH value of 9 and the other has a pH value of 3. Which drink has the pH value of 9?
Fill in the following blank with suitable words:
Neutral substances have a pH of ................
What would you expect the pH of pure water to be?
The colour of methyl orange indicator in a solution is yellow. The pH of this solution is likely to be:
(a) 7
(b) less than 7
(c) 0
(d) more than 7
Solution A turns universal indicator blue to purple whereas solution B turns universal indicator orange to red.
Name any two substances which can give solutions like B.
Which one of the following can be used as an acid- base indicator by a visually impared student?
State whether the following statement is true or false. Correct the false statement.
Phenolphthalein is a natural indicator.
What is the colour of phenolphthalein in the basic solution?
