Multiple Choice Questions (MCQs)

  1. Mixing of table salt in water makes:

(a) Mixture        (b) Compound              (c) Colloidal       (d) Solution

  1. Which of the followings is electrolyte?

(a) glucose        (b) NaCI                      (c) sugar           (d) Ether

  1. For example 10 gm of sodium chloride is added in 90 gm of • water. This solution is:

(a) 10%            (b) 50%                       (c) 90%            (d) 100%

  1. The number of moles of a solute per liter of a solution is

(a) Molality        (b) Normality                (c) Molarity        (d) None

  1. The number of moles of a substance dissolved in in 1000 cm3
    of solution is:

(a) Molality        (b) Normality                (c) Molarity        (d) Non

  1. A substance that releases hydrogen ions (If) is:

(a) Acid             (b) Salt                        (c) Alkali           (d) Base

  1. Which of the followings is not acidic pH?

(a) 5                 (b) 4                            (C) 7                 (d) 1

  1. Which of the followings acts as natural buffer?

(a) NaCI            (b) Na2CO,                   (c) Nal ICO;       (d) CAI



  1. The pH of blood remains at:

(a) 4.3              (h) 7.35                       (e) 9.23             (d ) None

  1. Which of the followings is gel?

(a) Milk             (h) butter                     (d) paint            (d) none

  1. The tendency of molecules and ions to adhere to the surface
    of certain solids or liquids is called.

(a) Absorption (b) diffusion                    (c) adsorption (d) None

Which of the follms hills is colloidal solution

(a) Milk             (b) Sugar in xs ater      (d) Water          (d) Silk


I. (d) 2. (b) 3. (a) 4. (e)           5. (a) 6. (d) 7. (c) 8. (c)           9. (b)
10. (b) 11. (c) 12. (a)

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