Quiz  /  Surface Chemistry Class 10 MCQ Questions With Answers

  • 1. 
    Oil molecules are nonpolar. What kind of solvent is required to remove an oil stain?

  • saturated
  • unsaturated
  • polar
  • nonpolar

  • 2. 
    Air is a

  • compound
  • element
  • heterogeneous mixture
  • solution

  • 3. 
    What is the most common solvent in everyday life?

  • Ethanol
  • Tuluene
  • Water
  • Oils

  • 4. 
    What is the molarity of a solution that contains 125 g NaCl in 4.00 L of solution?

  • 0.535 M NaCl
  • 2.14 M NaCl
  • 8.56 M NaCl
  • 31.3 M NaCl

  • 5. 
    True or false:Dissolved particles will pass through a piece of filter paper.

  • True
  • False

  • 6. 
    An electrolyte is...

  • The rapid, random movement of particles in colloidal dispersion.
  • A substance that dissolves in water and conducts electric current.
  • A substance that dissolves in water and does not conduct electric current.
  • The solution process when water is the solvent.

  • 7. 
    You and your friend have a contest to see who can make sweet iced tea the fastest. Which of the following would NOT help you win?

  • Cooling the water
  • Using smaller sugar crystals
  • Heating the water
  • Stirring quickly

  • 8. 
    A dissolved solute that does not form ions is:

  • a nonelectrolyte
  • a weak electrolyte
  • a strong electrolyte
  • insoluble

  • 9. 
    Which of the following has the MOST surface area?

  • A single 5 gram ice cube
  • 5 grams of crushed ice
  • 5 grams of shaved ice

  • 10. 
    How does temperature affect solubility?

  • Solubility is not affected by temperature.
  • Solubility decreases with an increase in temperature.
  • Solubility increases with an increase in temperature.

  • 11. 
    Solutions that conduct a current are called ____________ and are made from ___________ compounds.

  • electrolytes; ionic
  • nonelectrolytes; ionic
  • electrolytes; molecular
  • electrolytes; covalent

  • 12. 
    Which of the following is NOT a solution?

  • the air you breathe
  • carbonated soda
  • nail polish mixed with acetone
  • milk

  • 13. 
    You begin with a solution of 400 grams of potassium chloride dissolved in 1250 mL of water. If the volume of water is increased by 33%, what is the final molarity of the solution?

  • 3.2 M
  • 4.3 M
  • 5400 M
  • 5.4 M

  • 14. 
    The ___ is the thing being dissolved.

  • solute
  • solvent
  • mixture
  • suspension

  • 15. 
    Amount of solute that can dissolve in a given amount of solvent at a given temperature

  • saturated solution
  • solubility
  • pure substance
  • colloid

  • 16. 
    This solution would be considered

  • Unsaturated
  • Supersaturated
  • Saturated
  • Undefined
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