Advertisements
Advertisements
प्रश्न
Why indicator does not get affected by salt?
Advertisements
उत्तर
Indicators do not get affected by salts because salts are neutral in nature. Indicators work only with acidic and basic substances.
For example:
| Indicator | Acidic substance | Basic substance |
| Phenolphthalein | colourless | turns pink |
| Methyl orange | turns red | turns yellow |
संबंधित प्रश्न
What do you understand by an alkali?
Give one example in the following case:
A hydroxide which is insoluble in water.
Give the significance of pH of soil in agriculture.
Which among the following is not a base?
When the soil is too basic, plants do not grow well in it. To improve its quality what must be added to the soil?
Look at figure which shows solutions taken in test tubes A, B, C and D. What colour is expected when a piece of red litmus paper is dropped in each test tube? Nature of the solutions is given in the table for your help.
| Test tube | Nature of Solution | Change in colour of red litmus |
| A | Neutral | |
| B | Basic | |
| C | Acidic | |
| D | Neutral |
Sodium carbonate is commercially called ______.
What is the role of toothpaste in the prevention of tooth decay?
Which of the following solutions do not conduct electricity?
Water-soluble bases are called ______.
