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प्रश्न
Why indicator does not get affected by salt?
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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 |
संबंधित प्रश्न
Distinguish between acid and alkali (other than indicators).
Main constituent of base is ______.
Which of 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?
A solution changes the colour of turmeric indicator from yellow to red. The solution is ______.
State whether the following statement is true or false. Correct the false statement.
Lime water turns red litmus blue.
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.
______ alkali has a relatively high percentage of alkali in its aqueous solution.
NaOH & KOH are strong bases.
Choose the most appropriate answer from
(SO2, SiO2, Al2O3, CO, MgO, Na2O)
A basic oxide.
