Compare the diffusion of iodine vapours and ink and find the difference.
Important Questions on Properties of Matter
Classify the given materials into pure substances and mixtures.
Gold, soda water, soil, water, ice, water vapour, common salt, sugar, carbon dioxide, sugar solution and salt solution.
Complete the table given below:
| Occasion/ Separation of | Method of separation | Property used for separation |
| Tea dreg from tea | Different in the size of particles | |
| Common salt from seawater | ||
| Chaff from paddy | ||
| Iron powder from a mixture of iron powder and aluminium powder |
In distillation process, common salt solution is taken in round bottom flask. On heating the solution, which component evaporates?
In distillation process, common salt solution is taken in a round bottom flask. On heating the solution, which substance will remain in the flask? What is the reason?
In distillation process, common salt solution is taken in round bottom flask. On heating the solution, what happens to the water vapour when it passes through the condenser?
Fill one-fourth of a bottle with kerosene. Pour an equal amount of water into it, close the bottle and shake well. Keep it aside for few minutes. What do you observe?
