Advertisements
Advertisements
प्रश्न
On what principle are the following methods of separation based? Give one example of a mixture for each of the methods mentioned in which they are used
Sublimation
उत्तर
The process in which a solid changes directly into its vapours on heating is called sublimation. This method is used for solid mixtures in which one of the components can sublime on heating. The solid which sublimes escapes as vapours, while the other one is left behind.
Example: Mixture of sand and iodine, common salt and ammonium chloride, etc. are separated by sublimation.
APPEARS IN
संबंधित प्रश्न
Name a suitable technique of separation of the components from a mixture of calcium sulphate and camphor.
Fill in the blank
Iodine, camphor, naphthalene, ammonium chloride and dry ice are some substances that _________
State the correct technique for the separation of the following mixture.
a sublimable solid and a non-sublimable solid.
Naphthalene and sodium chloride
- Give the principle involved in the separation of the mixture
- Give the technique of separation of the mixture.
Select the correct answer from the choice in the bracket.
The ideal method to separate iodine and KCI.
Define Sublimation.
Give an example of each mixture having the following characteristics. Suggest a suitable method to separate the components of this mixture
One of the components changes directly from solid to gaseous state.
What are the uses of dry ice?
The energy for the process of sublimation can be derived either from the surroundings or from the heat supplied.
Which one of the following can be purified by sublimation?
