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प्रश्न
Give reasons for the following:
Naphthalene and camphor cannot be separated by sublimation.
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उत्तर
Because both of these are sublimable solids and they sublimes on heating.
संबंधित प्रश्न
What are the characteristic properties of a pure substance? Why do we need them?
What is the major difference between a solution and an ordinary mixture ?
Name the components present in the following mixture:
Bronze
Name the components present in the following mixture:
Crude petroleum oil
Match the statements in List I with the correct answer in List II.
| List I | List II |
| 1. Purification of water by adding alum | A: Sublimation |
| 2. Seawater leaving behind common salt | B: Sieving |
| 3. Separation of camphor and potassium chloride | C: Filtration |
| 4. Separation of charcoal from a charcoal-water mixture | D: Sedimentation |
| 5. Separation of bran and wheat flour | E: Evaporation |
Name the following:
A physical method of separating iron from an iron-sulfur mixture.
Make a fruit or vegetable salad. Give reasons why you think it is a mixture.
Suggest separation technique(s) one would need to employ to separate the following mixture.
Kerosene oil, water and salt
Mixtures are impure substances.
Expand LPG ______.
