Question # 1

Colligative properties are the properties of.

Choose an answer

Dilute solution which behave as nearly ideal solutions

Concentrated solutions which behave as nearly non ideal solutions

Both a and b

Neither a nor b

The molal boiling point constant is the ration of the elevation in boiling point to

Choose an answer

Molarity

Molality

Mole fraction of solvent

Mole fraction of solute

A negative deviation from Raoult's law in solution means, the solution has

Choose an answer

High boiling point and high vapour pressure

High boiling point and low vapour pressure

Low boiling point and low vapour pressure

Low boiling point and high vapour pressure

Which one of the following salts dissolved in water to form a solution with a pH lesser than 7

Choose an answer

NaCl

CuSO4

Na2CO3

NH4Cl

18 g glucose is dissolved in 90 g o water, The relative lowering of vapour pressure is equal to.

Choose an answer

1/5

5.1

1/51

6

10 g of NaOH have been dissolved per kg of solvent The molality of solution.

Choose an answer

0.25 m

0.5 m

1.0 m

2.0 m

Two solution of NaCI and KCI are prepared separately by dissolving same moles of them in the fixed amount of solvent. Which of the following statements is true for these solution

Choose an answer

KCI solution will have higher boiling point than NaCI solution

Both the solutions have different boiling point

KCI and NaCI solution possess same vapour pressure

KCI solution possesses lower freezing point than NaCI solution

The temperature which partially immiscible pair of liquid leads to the formation of a single phase in called.

Choose an answer

Transition temperature

Absolute temperature

Consulate temperature

Room temperature

Which of the following solutions has the highest boiling point

Choose an answer

5.85% solution of sodium chloride

18.0% solution of glucose

6.0% solution of urea

All have the same boiling points

Salt of weak acid with strong base when dissolved in water gives.

Choose an answer

Acidic solution

Basic solution

Neutral solution

None of above

Which one of the following salts do not hydrolyses

Choose an answer

CuSO4

Na2CO3

NaCl

AlCl3

In a solution 7.8 g of benzene and 46 g of toluene is present The mole fraction of benzene is.

Choose an answer

1/2

1/3

1/5

1/6

Upper consulate temperature for water phenol system is.

Choose an answer

150 ^oC

65.9 ^oC

120 ^oC

130 ^oC

Solubility of which substance decreases by increasing temperature.

Choose an answer

NaNO3

KNO2

NaCl

Ce2(SO4)3

Solubility curve of CaCl26H2O shows

Choose an answer

Decrease in solubility with increase of temperature

Increase in solubility with increase of temperature

Discontinuous increase in solubility with temperature

No effect of temperature on solubility

The vapour pressure of an aqueous solution of glucose is.

Choose an answer

Equal to vapour pressure of water

Independent of temperature

More than vapour pressure of pure water

Less than vapour pressure of pure water

Which solution is an example of solid in gas

Choose an answer

Fog

Steel

smoke

Air

Unit of mole fraction is

Choose an answer

mol dm-3

mol kg-1

g dm-3

No unit

More Classes

Other Links

Chemistry Fsc Part 1 Chapter 9 Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer