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प्रश्न
Complete the following table and write your observations.
| Hydrogen sulphide | Ammonia | Sulphur dioxide | Hydrogen chloride | |
| Shake the gas with red litmus solution |
उत्तर
| Hydrogen sulphide | Ammonia | Sulphur dioxide | Hydrogen chloride | |
| Shake the gas with red litmus solution |
No change |
blue |
No change |
No change |
संबंधित प्रश्न
Complete the table:
| Indicator | Neutral | Acidic | Alkaline |
| Litmus | Purple | ______ | ______ |
| Phenolphthalein | Colourless | ______ | ______ |
Define an indicator.
What is the pH of pure water?
What is observed when neutral litmus solution is added to sodium hydrogen carbonate solution?
To increase the pH value of neutral solution, we should add
An organic weak acid is ______.
Write the approximate colour of the following sample with the universal indicator: Gastric juice
State the change noticed when blue litmus and red litmus is introduced in the following solution:
Na2CO3 solution
State the change noticed when blue litmus and red litmus is introduced in the following solution:
NH4NO3
A given white crystalline salt was tested as follows:
It dissolved in water and the resulting solution of the salt turned blue litmus red. What conclusions can be drawn for the observation?
