Solutions – MCQ’s

Solutions – MCQ’s

1. The emulsions are the type of solution:

(a) Solid in solid

(b) Liquid in solid  ✓

(c) Gas in liquid

(d) None of these

2. In true solution, the particle are the type of solution:

(a) 0.1mµ             ✓

(b) 10.0 mµ

(c) 0.5mµ

(d) 1.0 mµ

3. Which property is not for suspensions?

(a) Homogeneous

(b) Cannot be seen by naked eye            ✓

(c) Not a true solution

(d) Solid in liquid

4. The concentration of the solute in solution, when it is en equilibrium with solid substance, at a particular temperature is called:

(a) Molarity

(b) Dilution

(c) Colloidal solution

(d) Supersaturated solution  ✓

5. A solution containing relatively higher concentration of solute is called:

(a) Dilute solution

(b) Saturated solution

(c) Concentrated solution   ✓

(d) Suspension

6. Fog is an example of solution:

(a) Solid in gas             ✓

(b) Liquid in gas

(c) Liquid in solid

(d) Solid in liquid

7. Emulsions are the colloidal dispersion of liquid in:

(a) Solid           ✓

(b) Gas

(c) liquid

(d) Water

8. The suspension particles have appearance:

(a) Uniform

(b) Transparent

(c) Opaque        ✓

(d) Both ‘A’ and ‘B’

9. Starch, glue are the examples of:

(a) Colloidal solution

(b) Solution

(c) Colloids                ✓

(d) Crystalloids

10. Solution which can dissolve further amount of a solute at particular temperature is called:

(a) Saturated solution

(b) Unsaturated solution   ✓

(c) Colloidal solution

(d) Supersaturated solution

11. The solution which can easily pass through parchment membrane is considered as:

(a) Colloidal solution

(b) True solution    ✓

(c) Suspensions

(d) Crystalloids

12. Change of temperature can change the______ of a solute in a solvent.

(a) Dilution

(b) Solubility           ✓

(c) Molarity

(d) Dipole moment

13. The ionic and polar compounds like NaCl and HCl are more soluble in water than non-polar covalent compounds like.

(a) CCl₄

(b) Benzene

(c) CS₂

(d) All of these  ✓

14. Which one produced colloidal solution

(a) Blood                      ✓

(b) Cooper Sulphate solution

(c) Silver nitrate solution

(d) None of these

15. Concentration is most often expressed as the ratio of the amount of _________to the amount of solution.

(a) Solute           ✓

(b) solvent

(c) brine

(d) salt

16. Number of moles of solute per dm³ of the solution is called:

(a) Molarity        ✓

(b) molality

(c) normality

(d) density

17. Sodium amalgam which two metals as present

(a) Na and Mg

(b) Na and Mµ

(c) Na and Hg          ✓

(d) Zn and Co

18. The concentrated solution of NaCl is called:

(a) Fluid

(b) Brass

(c) Brine            ✓

(d) Plasma

19. Brass is a familiar alloy, made of:

(a) zinc + carbon

(b) Zinc + copper      ✓

(c) copper + iron

(d) zinc + lead

20. The homogeneous mixture of two or more compounds is called:

(a) solute

(b) solvent

(c) solution       ✓

(d) fluid

21. Which of the following solutions contains least amount of water?

(a) 2M           ✓

(b) 1M

(c) 0.5 M

(d) 0.25M

22. Opal is an example of solution

(a) Liquid in solid

(b) Solid in gas

(c) Solid in solid             ✓

(d) Gas in liquid

23. 1M solution is diluted to ten time, its new morality is:

(a) 0.01M            ✓

(b) 0.9M

(c) 0.2M

(d) 0.1M

24. Which one of the following is true solution?

(a) Paints

(b) Alcohol in water  ✓

(c) Milk

(d) Milk of magnesia

25. Heat is absorbed on dissolving which one of the following salts:

(a) NaCl

(b) Ce₂(SO₄)₃

(c) NaNO₃            ✓

(d) Li₂SO₄

26. Smoke is an example of solution

(a) Solid in gas             ✓

(b) Gas in liquid

(c) Liquid in solid

(d) Gas in solid

27. KCl is soluble in

(a) Water                  ✓

(b) Benzene

(c) Ether

(d) Kerosene oil

28. Naphthalene is soluble in

(a) Water

(b) Ether

(c) Carbon tetrachloride

(d) Both (b) and (c)  ✓

29. Blood is an example of

(a) True solution

(b) Suspension

(c) Colloid                  ✓

(d) None of all

30. 20 g of NaOH has been dissolved in 0.5dm³ of the solution its molarity is:

(a) 0.1M

(b) 1.0M  ✓

(c) 0.5M

(d) 1.5M

31. What mass of NaOH is required to prepare 1M 500cm³ of the solution:

(a) 10g

(b) 20g  ✓

(c) 30g

(d) 40g

32. What volume of 2M solution of H₂SO₄ is required to prepare 500 cm³1M solution?

(a) 10cm³

(b) 15cm³

(c) 20cm³

(d) 25cm³  ✓

33. 2g of NaCl has been dissolved in 20.0g of H₂O, its % m/m is

(a) 9.09%  ✓

(b) 19.09%

(c) 1.9%

(d) 10.0%

34. Identify among the following which one is universal solvent?

(a) CH₃COOH

(b) Liquid ammonia

(c) Water  ✓

(d) Ethanol

35. Which one of the following salts gives out heat on dissolving in water?

(a) NaCl

(b) Ce₂ (SO₄)₃  ✓

(c) KNO₃

(d) KCl

36. Mist is an example of solution

(a) Liquid in gas  ✓

(b) Gas in liquid

(c) Solid in gas

(d) Gas in solid

37. Which one of the following is a liquid in solid solution?

(a) Sugar in water

(b) Butter

(c) Solvent to solution

(d) Fog  ✓

38. Which one of the following solutions contains more water?

(a) 2 M

(b) 1 M

(c) 0.5 M

(d) 0.25 M  ✓

39. Tynadall effect is shown by

(a) Sugar solution

(b) Jelly  ✓

(c) Paints

(d) Chalk solution

40. Tyndall effect is due to

(a) Blockage of beam of light

(b) Non-scattering of beam of light

(c) Scattering of beam of light  ✓

(d) Passing through beam of light

41. If 10cm³ of alcohol is dissolved in 100g of water, it is called

(a) % m/m

(b) % m/v

(c) % v/m  ✓

(d) % v/v

42. Sea water is a source of

(a) Fog

(b) Opal  ✓

(c) Soft drink

(d) Cheese

43. Which one of the following solutions contains maximum amount of water?

(a) 2M

(b) 1M

(c) 0.5 M

(d) 0.25 M  ✓

44. Brass is a solid solution of

(a) Zn and Cd

(b) Zn and Cu  ✓

(c) Zn and Hg

(d) Zn and Mg

45. 10cm³ of 0.01 molar KMnO₄ solution has been diluted to 100 cm³ its molarity will become

(a) 0.001 M  ✓

(b) 0.1 M

(c) 0.01M

(d) 1 M