Advertisements
Advertisements
प्रश्न
In acidic solution, the colour of the hibiscus indicator paper will change to _____.
Advertisements
उत्तर
In acidic solution, the colour of the hibiscus indicator paper will change to deep pink or deep red.
APPEARS IN
संबंधित प्रश्न
Sodium hydroxide turns blue litmus red.
What colour do the following indicators turn when added to a base or alkali (such as sodium hydroxide)?
litmus
Name two olfactory indicators?
Which is more acidic : a solution of pH = 2 or a solution of pH = 6?
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?
Name two common antacids.
The pH values of five solutions A, B, C, D and E are given below:
| A | 1 |
| B | 5 |
| C | 7 |
| D | 11 |
| E | 13 |
Which solution isneutral neutral.
Assertion: Methyl orange and phenolphthalein are natural indicators.
Reason: Methyl orange is yellow in colour while phenolphthalein is pink.
Name the acid present in vinegar.
Take a small beetroot vegetable and cut it into pieces. Boil them in hot water and filter the extract. Take two test tubes. Take sodium hydroxide solution in one test tube and vinegar or lemon juice in another test tube. Add beetroot extract slowly. Observe the colour change. What do you infer?
