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प्रश्न
Why indicator does not get affected by salt?
लघु उत्तर
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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 |
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संबंधित प्रश्न
What do you understand by an alkali?
Give one example in the following case:
A hydroxide which is insoluble in water.
Give one example in the following case:
A base which does not contain a metal ion.
All bases are alkalis.
Phenolphthalein gives ______ colour with lime water.
Match the following:
| 1. | Wasp sting | a. | Milk of magnesia |
| 2. | Common salt | b. | Acetic acid |
| 3. | Organic acid | c. | Sodium chloride |
| 4. | Antacid | d. | Vinegar |
Match the following:
| 1. | Sulphuric acid | a. | Weak base |
| 2. | Sodium hydroxide | b. | Strong acid |
| 3. | Acetic acid | c. | Strong base |
| 4. | Ammonium hydroxide | d. | Weak acid |
Which of the following pairs are weak bases?
______ are bitter in taste.
NaOH & KOH are strong bases.
