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The Quiz is a JEE mains Level quiz containing 25 questions.

In 25 questions 15 questions are single choice, 6 question Assertion reasons type, 4 question Match the following type.

The time allotted for the quiz is 60 minutes.

The number of attempts remaining is 3

1 / 25

1. An aqueous solution is 1.00 molal in KI. Which change will cause the vapor pressure of the solution to increase?

a) Addition of Na₂ SO₄

b) Addition of NaCl.

c) Addition of 1.00 molal KI

d) Addition of water.

2 / 25

2. Match the following Henry’s law constant values for gases in water at 298 K.

solution47

a) A→3; B→ 5; C→ 1; D→ 2; E→ 4

b) A→3; B→ 2; C→ 5; D→ 1; E→ 4

c) A→3; B→ 4; C→ 2; D→ 1; E→ 4

d) A→3; B→ 1; C→ 5; D→ 2; E→ 4

3 / 25

3. Statement I: 1M aqueous solution of glucose contains 180 g of glucose in 1 kg water.
Statement II: Solution containing one mole of solute in 1000 g of solvent is called one molal solution.

a) Statement I is true, Statement II is false.

b) Statement I is true, Statement II is true; Statement II is NOT a correct explanation for statement-I.

c) Statement I is true, Statement II is true; Statement II is the correct explanation for Statement I.

d) Statement I is false, Statement II is true.

4 / 25

4. Match the following Column I which represent concentration term to the Column II representing their corresponding formulae:

solution46

a) A→1; B→ 2; C→ 3; D→ 4

b) A→4; B→ 3; C→ 2; D→ 1

c) A→2; B→ 1; C→ 4; D→ 3

d) A→2; B→ 4; C→ 1; D→ 3

5 / 25

5. 10% (m/m) aqueous potassium iodide has a density of 1.202 g mL ^-1. The true statements about this solution is:

a) Molality of this solution is 0.67.

b) This solution contains 100 g of water.

c) Mole fraction of KI in this solution is 0.0228.

d) Molarity of this solution is 2.90.

6 / 25

6. The molarity of a solution obtained by mixing 750 mL of 0.5 M HCl with 250 mL of 2M HCl will be:

a) 0.875 M

b) 1.75 M

c) 1.00 M

d) 0.0975 M

7 / 25

7. Statement I: Experimentally determined molar mass is always lower than the true value.
Statement II: Lower molar mass is due to dissociation of solute into ions

a) Statement I is true, Statement II is true; Statement II is the correct explanation for Statement I.

b) Statement I is false, Statement II is true.

c) Statement I is true, Statement II is true; Statement II is NOT a correct explanation for statement-I.

d) Statement I is true, Statement II is false.

8 / 25

8. The correct statement about the mixture of phenol and aniline is:

a) ∆H_mix > 0

b) A-A and B-B interactions are weaker than A-B interactions.

c) ∆V_mix > 0

d) It forms a minimum boiling azeotrope.

9 / 25

9. What is the mole fraction of the solute in a 1m aqueous solution?

a) 1.770

b) 0.0345

c) 0.0177

d) 0.177

10 / 25

10. Statement I: People taking a lot of salty food experience the puffiness or swelling, called edema.
Statement II: There is water retention in tissue cells and intercellular spaces because of osmosis.

a) Statement I is true, Statement II is true; Statement II is the correct explanation for Statement I.

b) Statement I is true, Statement II is true; Statement II is NOT a correct explanation for statement-I.

c) Statement I is true, Statement II is false.

d) Statement I is false, Statement II is true.

11 / 25

11. The molality of a urea solution in which 0.0100 g of urea, [(NH₂)₂CO] is added to 0.3000 dm³of water at STP is:

a) 5.55 x10⁻⁴ m

b) 3.33x10⁻² m

c) 0.555 m

d) 33.3 m

12 / 25

12. Which of the following would exert maximum osmotic pressure?

a) A solution obtained by mixing equal volumes of 0.1 N Barium chloride and 0.1 N Sodium chloride.

b) 0.1 N Aluminum sulphate

c) 0.1 N Barium chloride

d) 0.1 N Sodium chloride

13 / 25

13. 25.3 g of sodium carbonate, Na₂CO₃is dissolved in enough water to make 250 mL of solution. If sodium carbonate dissociates completely, molar concentration of sodium ion, Na ⁺and carbonate ions, CO₃ ²^-respectively are (Molar mass of Na₂CO₃ =106 mol^-1)

a) 0.477 M and 0.477 M

b) 0.955 M and 1.910 M

c) 1.90 M and 1.910 M

d) 1.910 M and 0.955 M

14 / 25

14. Match the following columns and choose the correct option from the codes given below.

solution45

a) A→2; B→ 3; C→ 1

b) A→1; B→ 3; C→ 2

c) A→1; B→ 2; C→ 3

d) A→2; B→ 1; C→ 3

15 / 25

15. How many grams of concentrated nitric acid solution should be used to prepare 250 mL of 2.0 M HNO₃? The concentrated acid is 70% HNO₃.

a) 45.0 g conc. HNO₃

b) 50.0 g conc. HNO₃

c) 90.0 g conc. HNO₃

d) 70.0 g conc. HNO₃

16 / 25

16. p_Aand p_Bare the vapor pressure of pure liquid components A and B respectively of an ideal binary solution. If x_Arepresents the mole fraction of component A, the total pressure of the solution will be:

a) p_A + x_A(p_B- p_A)

b) p_B + x_A(p_A- p_B)

c) p_B + x_A(p_B- p_A)

d) p_A + x_A(p_A- p_B)

17 / 25

17. Match the items given in Column I and Column II.

solution50

a) A→5; B→ 1; C→ 2; D→ 3; E→ 4; F→ 6

b) A→1; B→ 3; C→ 5; D→ 4; E→ 2; F→ 6

c) A→2; B→ 1; C→ 3; D→ 4; E→ 6; F→ 5

d) A→4; B→ 3; C→ 1; D→ 2; E→ 6; F→ 5

18 / 25

18. Statement I: The molecular weight of acetic acid determined by depression in freezing point method in benzene and water was found to be different.
Statement II: Water is polar, and benzene is non-polar.

a) Statement I is true, Statement II is true; Statement II is NOT a correct explanation for statement-I.

b) Statement I is false, Statement II is true.

c) Statement I is true, Statement II is false.

d) Statement I is true, Statement II is true; Statement II is the correct explanation for Statement I.

19 / 25

19. Statement I: Freezing point of solvent is more than that of solution.
Statement II: When non-volatile solid is added to the solvent, its vapor pressure increases and become equal to solid solvent at the lower temperature.

a) Statement I is true, Statement II is true; Statement II is NOT a correct explanation for statement-I.

b) Statement I is false, Statement II is true.

c) Statement I is true, Statement II is true; Statement II is the correct explanation for Statement I.

d) Statement I is true, Statement II is false.

20 / 25

20. Reverse osmosis is a process,

a) which is used for desalination of sea water.

b) All of these.

c) in which applied pressure to the solution side, is larger than the osmotic pressure.

d) in which solvent moves from solution of higher concentration to solution of lower concentration.

21 / 25

21. Statement I: When scuba divers come towards surface, their capillaries get blocked which is painful and dangerous to life.
Statement II: There occurred release of dissolved gases as the pressure decreases and leads to the formation of bubbles of nitrogen in the blood.

a) Statement I is true, Statement II is true; Statement II is the correct explanation for Statement I.

b) Statement I is false, Statement II is true.

c) Statement I is true, Statement II is true; Statement II is NOT a correct explanation for statement-I.

d) Statement I is true, Statement II is false.

22 / 25

22. Which of the following will have same value of Van’t Hoff factor as that of Al₂(SO₄)₃?

a) K₄[Fe(CN)₆]

b) AlCl₃

c) Al(OH)₃

d) BCl₃

23 / 25

23. If mole fraction of a solute in 1kg benzene is 0.2 then molality of solute is:

a) 2.0

b) 4.0

c) 3.6

d) 3.2

24 / 25

24. Which of the following statements is true about bends?

a) Capillaries are blocked and it create medical condition known as bends.

b) These are bubbles of helium in the blood.

c) It helps in increasing flexibility.

d) These are bubbles of carbon dioxide in blood.

25 / 25

25. Vapor pressure of chloroform (CHCl₃) and dichloromethane (CH₂Cl₂) at 25 C ° are 200 mm of Hg and 41.5 mm of Hg respectively. Vapor pressure of the solution obtained by mixing 25.5 g of CHCl₃and 40 g of CH₂Cl₂at the same temperature will be: (Molecular mass of CHCl₃ = 119.5 u and molecular mass of CH₂Cl₂ = 85 u)

a) 615.0 mm Hg

b) 173.9 mm Hg

c) 347.9 mm Hg

d) 90.63 mm Hg

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