Advertisements
Advertisements
Question
Name a suitable technique of separation of the components from a mixture of calcium sulphate and camphor.
Solution
The process of sublimation is used to separate a mixture of camphor and calcium sulphate. In this process, the sublimable compound changes from solid to vapour state without passing through the liquid state. Camphor is a sublimable compound and calcium sulphate is a non-sublimable solid. Hence, on heating, camphor will sublime while calcium sulphate will be left behind.
APPEARS IN
RELATED QUESTIONS
Name the technique to separate salt from sea-water.
Name the technique to separate camphor from salt
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?
Ammonium chloride from a mixture containing sodium chloride and ammonium chloride.
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
Iodine, camphor, naphthalene, ammonium chloride and dry ice are some substances that _________
Select the correct answer from the choice in the bracket.
The ideal method to separate iodine and KCI.
An example of a substance that sublimes is ______.
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 is dry ice or cardice?
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?
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 |
