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प्रश्न
Explain with diagram the process used to – separate the following substance from the given mixtures - Benzene from a mixture of – benezene [b.p. 80°C] & toluene [b.p. 110°C].
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उत्तर
By fractional distillation, miscible low boiling point benzene (B.P. 80°C) evaporates on heating the mixture and condenses in and collects in flask ‘Y’ whereas higher boiling pt. Toluene (B.P. 110°C) remains in flask ‘X’ after condensation.
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संबंधित प्रश्न
Differentiate between:
pure and impure substances
Fill in the blank
Clay is separated from water by the method called ______
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
Match the ideal method of separation of components in a mixture in List I with the appropriate process in List II.
| List I | List II |
| 1. Sand from a mixture of sand and water | A: Separating funnel |
| 2. kerosene from a mixture of kerosene water | B: Sublimation |
| 3. Alcohol from a mixture of methyl alcohol and water | C: Filtration |
| 4. Naphthalene from a mixture of naphthalene and lead chloride | D: Distillation |
| 5. Pure water from impure water | E: Fractional distillation |
State any one method – to separate the following mixtures – Two solid mixtures one of which – directly changes into vapour on heating.
Explain with diagram the process used to – separate the following substance from the given mixtures - Iron from a mixture of – iron & copper
Explain with a diagram the process used to – separate the following substance from the given mixture.
Lead carbonate [insoluble] from a mixture of – lead carbonate & water.
Very Short Answer Type Question:
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