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MCQs

Total Questions : 30 | Page 3 of 3 pages
Question 21. The concentration of the solution is the quantity of
  1.    solvent in solute
  2.    solute in given solvent
  3.    gas dissolved in liquid
  4.    none of above
 Discuss Question
Answer: Option B. -> solute in given solvent
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 22. When NaCl is dissolved in water, the negative end of water molecules is attracted towards
  1.    Cl
  2.    H
  3.    He
  4.    Na
 Discuss Question
Answer: Option D. -> Na
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 23. In the presence of crystals of solute, a supersaturated solution is
  1.    not stable
  2.    stable
  3.    cannot be made
  4.    none of above
 Discuss Question
Answer: Option A. -> not stable
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 24. Mass of solute dissolved in 100g of a solution refers to
  1.    percentage of solution
  2.    molarity of solution
  3.    molality of solution
  4.    none of above
 Discuss Question
Answer: Option A. -> percentage of solution
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 25. The methanol and water are
  1.    miscible
  2.    non miscible
  3.    forms saturated solution
  4.    forms supersaturated solution
 Discuss Question
Answer: Option A. -> miscible
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 26. The solubility of Na2SO4
  1.    increases with increase in temperature
  2.    decreases with increase in temperature
  3.    no effect on solubility with change in temperature
  4.    none of above
 Discuss Question
Answer: Option B. -> decreases with increase in temperature
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 27. Colloids can
  1.    scatter light
  2.    not scatter light
  3.    absorb heat
  4.    evolve heat
 Discuss Question
Answer: Option A. -> scatter light
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 28. Solutions that contain solid solutes in liquid solvents are called
  1.    liquids in solids
  2.    solids in liquids
  3.    solids in solids
  4.    solids in gas
 Discuss Question
Answer: Option B. -> solids in liquids
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 29. The only liquid metal at room temperature is
  1.    sodium
  2.    iron
  3.    mercury
  4.    aluminum
 Discuss Question
Answer: Option C. -> mercury
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 30. In the air, the nitrogen gas acts as
  1.    solute
  2.    solvent
  3.    gaseous solute
  4.    aqueous solute
 Discuss Question
Answer: Option B. -> solvent
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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