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Class- 9th, Subject- Chemistry, Chapter 2 Is matter Around us Pure, 1. More than one kind of pure form of matter combines forming_________, a) Texture, b) Solution, c) Mixture, d) components, 2. Dissolved sodium chloride can be separated from water by ________, a) chemical process, b) physical process, c) chemical process of extraction, d) physical process of evaporation, 3. No uniform composition of solution called ______ solution, a) Mixture, b) texture, c) Homogeneous, d) Heterogeneous, 4. Uniform composition of solution called ________ solution, a) Mixture, b) texture, c) Homogeneous, d) Heterogeneous, 5. Homogeneous solution may separated by ______

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a) Chemical process, b) physical process, c) filtration, d) physical process of evaporation, 6. Mixture of two or more metal, or metals and non metals called __________, a)Alloy, b) Solution, c) Mixture, d) metallic mixture, 7. Alloy cannot be separated by __________ method, a) chemical, b) Evaporation, c) Physical, d) Extraction, 8. Brass is a mixture of _______ and _____, a) zinc, carbon, b) zinc, Mg, c) zinc, C0, d) zinc, copper, 9. Zinc and copper get mixed by forming ________, a) steel, b) Brass, c) gold, d) zinc, carbon mixture, 10. The components of solution that dissolve in solvent called _________

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a) solute, b) sugar, c) Solvent, d) Mixtue, 11. Components present in large amount in solution called _______, a) solute, b) sugar, c) Solvent, d) Mixture, 12. A components present in lesser quantity in solution called_______, a) Solute, b) sugar, c) solvent, d) Mixture, 13. A component present in more quantity in solution called______, a) solute, b) sugar, c) solvent, d) Mixture, 14. Sugar in water in that case sugar is ___, a) solute, b) sugar, c) solvent, d) Mixture, 15. Air is ___________ mixture

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a) Heterogeneous, b) Homogeneous, c) solid, d) Gas, 16. If the solute particle size is smaller than----- then it cannot seen by naked eyes, a) 1m, b)1cm, c)1mm, d)1nm, 17. When no more solute can be dissolve in solution at given temperature is called ______, solution., a) Homogeneous, b) Heterogeneous, c) Saturated, d) unsaturated, 18. The amount of the solute present in the saturated solution at its temperature is called, its __________, a) unsaturation, b) Diffusion, c) collusion, d) solubility, 19. If the amount of solute contained in the solution is less than the saturation level----- it, called as_____, a) Saturated solution, b) Unsaturated solution

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c) Homogeneous solution, d) Heterogeneous solution, 20. The concentration of solution is the depend on amount of _______ present in given, sample., a) solvent, b) solution, c)particles, d) solute, 21. Mass of solute divided by mass of solution multiple by 100 then we get ?, a) solution, b) Mass, c) Mass percentage of solution, d) volume percentage, 22. Mass of solute divided by volume of solution multiple by 100 then we get?, a) solution, b) Mass, c) Mass percentage of solution, d) Mass by volume percentage of solution, 23. If the solution is 4oo ml and solvent is 300 ml so what is percentage of solute?, a) 30, b) 40, c)45, d) 25, 24. solids are disperse In liquid called _______, a) Diffusion

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b) Dissolution, c) Collusion, d) suspension, 25. Suspension is _________ mixture, a) Saturated, b) unsaturated, c) Homogeneous, d) Heterogeneous, 26. Mixture of water and milk shows ________ effect, a) Solubility, b) Diffusion, c) Tyndall, d) Brightening, 27. Colloid is ________ mixture, a) saturated, b) unsaturated, c) Homogeneous, d) Heterogeneous, 28. ______ particles are scattered a beam of light passing through it and it and it’s a path, visible, a) Solute, b) Solvent, c) Colloidal, d) None of the above, 29. Foam is the example of ______

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a) Scattering light, b) colloids, c) Saturated solution, d) unsaturated solution, 30. We can separate the volatile components from its non volatile solute by the method of, ____, a) Extraction, b) Separation, c) Filtration, d) Evaporation, 31. Solid particles are not soluble in solution That can be separated by the ______, a) Extraction, b) Separation, c) Filtration, d) Evaporation, 32. Solid particles are very small in solution which cannot separated by filtration that, solution separated by ________, a) Dissolution, b) collusion, c) Suspension, d) Centrifugation, 33. Centrifugation do not used in _______, a) Diagnostic Lab, b) separate butter and cream, c) To separate water and sugar

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d) Used in washing machine, 34. Two immiscible layers can separate out in layer depending on their ______, a) Volume, b) surface tension, c) density, d) Viscosity, 35. __________Solution can separated depending upon their densities, a) Miscible solution, b) water, c) Immiscible, d) colloidal, 36. Separation of camphor and salt done by ______ method, a) Dissolution, b) Collusion, c) Suspension, d) Sublimation, 37.Separation of dyes and black ink using ________ method, a) Dissolution, b) Chromatographic, c) Suspension, d) Sublimation, 38. _________ is a mixture of 2 0r more colour, a) Alloy, b) Dyes, c) ink

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d) Paint, 39. Kroma means, a) colour, b) natural colour, c) ink, d) Paint, 40. ___________ is method to separate two miscible liquids, a) collusion, b) sublimation, c) suspension, d) Distillation, 41. chromatographic method used to separate, a) colour in dyes, b) drugs from blood, c) tea powder from factory, d) none of these, 42. two miscible liquid having boiling point less than 25 k can separated _______, a) Distillation, b) suspension, c) sublimation, d) Fractional distillation, 43. _________ method used for separate of petroleum product, a) Distillation, b) suspension, c) sublimation

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d) Fractional distillation, 44. Boiling point of oxygen_____, a) -280, b) -183, c) -130, d) -223, 45. Boiling point of Nitrogen ____, a) -196, b) -183, c) -130, d) -223, 46. Crystallization method is used to purify________, a) liquid, b) gas, c) Miscible liquid, d) solid, 47. ______ method is used to purify solid, a) Distillation, b) suspension, c) sublimation, d) Crystallization, 48. crystal alum separate from impure sample by ______ method, a) Distillation, b) suspension, c) sublimation

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d) Crystallization, 49. Chemical change shown in reaction called ______, a) Physical change, b) chemical reaction, c) Saturated solution, d) unsaturated solution, 50. Two or more atoms combine together forming ________, a) Elements, b) Molecules, c) Atom, d) none of these