Mixed Substances Class 6 Welcome to your Mixed Substances Class 6 1. Alum is used toDeselect Answer Speed up Sedimentation Slow down Sedimentation Both of the above None of the above2. The mixture obtained after mixing a solute in a solvent is called aDeselect Answer Solution Sediment Filtrate Supernatant3. Which of the following mixtures can be separated using Sublimation?Deselect Answer Ammonium chloride and water Ammonium chloride and common salt Ammonium chloride and oil Sand and Common salt4. The process in which liquid changes into vapours on heating is calledDeselect Answer Filtration Evaporation Sedimentation Decantation5. Process in which a mixture changes into vapours directly on heating without passing through liquid phaseDeselect Answer Sedimentation Sublimation Evaporation Decantation6. What kind of mixture can be separated through winnowing?Deselect Answer Liquid-liquid Liquid-gas Solid-solid Solid-liquid7. A heterogeneous mixture in which one liquid is dispersed as fine droplets in another liquid.Deselect Answer Suspension Solution Emulsion Substance8. In a mixture, the liquid to which the solute is added is calledDeselect Answer Solution Solute Solvent None of the above9. A mixture of husk and Wheat is an example ofDeselect Answer Homogeneous mixture Heterogeneous mixture Suspension Emulsion10. The solid part of the solution is calledDeselect Answer Solvent Solute Both of the above None of the above11. Which of the following is not an example of mixture?Deselect Answer Milk Air Iron Smog12. The process by which insoluble solid particles are separated from a liquid using a filter paper isDeselect Answer Filtration Sedimentation Evaporation Decantation13. The solution in which no more solid can be dissolved is calledDeselect Answer Crystallisation Saturated solution Clear Solution Supernatant solution14. Which of the following is an example of impurity?Deselect Answer Water in milk Stones in pulses Germs in water All the above15. Syrup is an example ofDeselect Answer Emulsion Homogeneous mixture Suspension Hetrogeneous mixture16. The process of transferring clear supernatant liquid into a separate clear container without disturbing the sediment is calledDeselect Answer Sedimentation Filtration Loading Decantation17. Common salt is prepared from sea water by the process ofDeselect Answer Sublimation Evaporation Sedimentation All the above18. A substance that is composed of two or more substances mixed in any ratio isDeselect Answer Mixture Element Compound Sublimate19. The constituents of a mixture areDeselect Answer Combined chemically Combined Physically Both of the above None of the above20. A heterogeneous mixture that consists of a solid dissolved in a liquidDeselect Answer Emulsion Suspension Compound Solution21 out of 20Please fill in the comment box below.