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प्रश्न
Why indicator does not get affected by salt?
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
Main constituent of base is ______.
Oxides of metals are acidic in nature.
What is the difference between an alkali and a base?
Write the balanced equation for the reaction of:
A named acid and a named alkali.
Which of the following is not a base?
Boojho, Paheli and their friend Golu were provided with a test tube each containing China rose solution which was pink in colour. Boojho added two drops of solution ‘A’ in his test tube and got dark pink colour. Paheli added 2 drops of solution ‘B’ to her test tube and got green colour. Golu added 2 drops of solution ‘C’ but could not get any change in colour. Suggest the possible cause for the variation in their results.
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 |
Which of the following solution is soapy to touch?
Water-soluble bases are called ______.
______ alkali has a relatively high percentage of alkali in its aqueous solution.
