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
Which separation technique will you apply for the separation of the following?
Sodium chloride from its solution in water.
Which separation technique will you apply for the separation of the following?
Small pieces of metal in the engine oil of a car.
How will you separate a mixture of common salt, chalk powder and powdered camphor? Explain.
Fill in the blank
Camphor and ammonium chloride can _______.
State the correct technique for the separation of the following mixture.
a sublimable solid and a non-sublimable solid.
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.
The Inverse of sublimation is called ______.
The correct match between items I and II is:
| Item - I (Mixture) |
Item - II (Separation method) |
||
| (A) | H2O : Sugar | (P) | Sublimation |
| (B) | H2O : Aniline | (Q) | Recrystallization |
| (C) | H2O : Toluence | (R) | Steam distillation |
| (S) | Differential extraction |
