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प्रश्न
State any one method – to separate the following mixtures – Two solid mixtures one of which – directly changes into vapour on heating.
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उत्तर
The method used is sublimation: Sublimable solid sublimes on heating i.e. change into vapours and condense on cooling is separated leaving behind non – sublimable solid.
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संबंधित प्रश्न
Write the Chemical Name of the Following and Also Give Their Molecular Formulae:
Baking Soda
Choose the most appropriate answer
Which of the gas is highly soluble in water ?
Tick the most appropriate answer
The methods of separating components of a given mixture are based on the
- physical properties and state of the components.
- colour of the components only.
- state of the components.
- none of these
Write true or false
Handpicking can be used as a separation technique if the particle size of the constituents of the mixture is the same.
Suggest a suitable technique to separate the constituents of the following mixtures. Also give the reason for selecting the particular method.
Sodium chloride and potassium nitrate
State any one method – to separate the following mixtures – A solid-liquid mixture containing – a soluble solids in the liquid component
Very Short Answer Type Question:
How will you separate mango from a mixture of mango and apple?
Very Short Answer Type Question:
What types of material can we separate by using handpicking?
Separation of sugar from tea can be done with filtration.
Match the mixtures in column I with their method of separation in column II.
| COLUMN I | COLUMN II | ||
| (a) | Oil mixed in water | (i) | Sieving |
| (b) | Iron powder mixed with flour | (ii) | Hand picking |
| (c) | Salt mixed with water | (iii) | Decantation |
| (d) | Lady’s finger mixed with french beans | (iv) | Magnet |
| (e) | Rice flour mixed with kidney beans | (v) | Evaporation |
