Separation Of Components Of Mixture MCQs
Question 1. A solution of sugar in water is
(1) A homogeneous mixture
(2) A heterogeneous mixture
(3) Separated by separating funnel
(4) None of these
Answer: (1) A homogeneous mixture
Question 2. Bronze is an example of
(1) Solid in a solid homogeneous mixture
(2) Solid is a solid heterogeneous mixture
(3) A solid is a liquid homogeneous mixture
(4) Solid in a liquid heterogeneous mixture
Answer: (1) Solid in solid homogeneous mixture
Question 3. Which one is a solid in liquid homogeneous mixture?
(1) Gunpowder
(2) Water in sponge
(3) iodine in alcohol
(4) Oil in water
Answer: (3) iodine in alcohol
Question 4. A mixture of common salt (NaCl) and \(\mathrm{NH}_4 \mathrm{Cl}\) (s) can be separated by
(1) Magnetic separation
(2) Mechanical picking
(3) Sublimation
(4) Filtration
Answer: (3) Sublimation
Question 5. Sedimentation and decantation is a method of separation suitable for
(1) Solid in a solid homogeneous mixture
(2) Liquid in liquid homogeneous mixture
(3) Solid in a liquid heterogeneous mixture
(4) Solid in a solid heterogeneous mixture
Answer: (3) Solid in a liquid heterogeneous mixture
Question 6. Fractional distillation is used for the separation of which type of mixture?
(1) Solid in liquid mixture
(2) Liquid in solid
(3) Liquid-liquid immiscible
(4) Liquid-liquid miscible
Answer: (4) Liquid-liquid miscible
Question 7. The use of a separatory funnel
(1) Depends on the volume ratio of two liquids
(2) Depends on the density difference between two liquids
(3) Depends on difference in boiling points of the liquids
(4) Depends on the color of the liquids
Answer: (2) Depends on the density difference between two liquids
Question 8. The use of fractional distillation depends on
(1) Volume ratio of liquids
(2) Density ratio of liquids
(3) Difference in boiling points of the liquids
(4) Color of the liquids
Answer: (3) Difference in boiling points of the liquids
Question 9. Which one is not a product of fractional distillation of crude petroleum?
(1) Petrol
(2) Diesel
(3) Ethanol
(4) Kerosene
Answer: (3) Ethanol
Question 10. Water boils at 100°C under a pressure of
(1) 760 cm of Hg
(2) 76 cm of Hg
(3) 7.6 mm of Hg
(4) 7.6 cm of Hg
Answer: (2) 76 cm of Hg
Question 11. The method to separate sugar from its aqueous solution ignoring the collection of water is S
(1) Evaporation
(2) Distillation
(3) Sedimentation
(4) Centrifugation
Answer: (1) Evaporation
Question 12. lodine and ethanol are separated from their mixture by
(1) Filtration
(2) Evaporation
(3) Distillation
(4) Fractional distillation
Answer: (3) Distillation
Question 13. A mixture of carbon tetrachloride and water is separated by using
(1) Funnel
(2) Separating funnel
(3) Beaker
(4) Fractionating column
Answer: (2) Separating funnel
Question 14. The boiling point of a liquid
(1) Decreases with increase in pressure
(2) The boiling point does not affect the pressure
(3) Increases with increase in pressure
(4) Does not always increase with the increase in pressure
Answer: (3) Increases with increase in pressure
Question 15. The components of crude oil are separated by
(1) Fractional distillation
(2) Distillation
(3) Separating funnel
(4) None of these
Answer: (1) Fractional distillation
Question 16. Alcohol and water mixture can be separated by
(1) Distillation
(2) Filtration
(3) Fractional distillation
(4) None of the above
Answer: (1) Distillation
Question 17. Carbon disulfide and water mixture can be separated by
(1) Filtration
(2) Decantation
(3) Separating funnel
(4) None of the above
Answer: (3) Separating funnel
