Question # 1

Molal boiling point elevation depends upon

Choose an answer

Nature of solvent

Natrue of solute

Vapour pressure of solution

None of these

Solubility of which substance decreases by incressing temperature.

Choose an answer

NaNO3

KNO2

NaCl

Ce2(SO4)3

Colligative properties are used to determine the

Choose an answer

Freezing points

Boiling point

Atomic mass of an element

Molar mass of solute

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

Water and Phenol are partially miscible to each other at room temperature when both liquids are mixed together which is upper layer.

Choose an answer

Water in Phenol

Phenol and water

Pure phenol

Pure water

An azeotropic mixture of two liquids boils at lower temperature than either of them when.

Choose an answer

It is saturated

It shows positive deviation from Raoult's law

It shows negative deviation from Raoult's law

It is metastable

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

Choose an answer

Acidic solution

Basic solution

Neutral solution

None of above

Relative lowering of vapour pressure is equl to.

Choose an answer

Mole fraction of solute

Mole fraction of solvent

Molarity

Molality

Relative lowering of vapour pressure is equal to.

Choose an answer

Mole fraction of solute

Mole fraction of solvent

Mole fraction of solute and solvent

Molality of solution

Colligative properites are the properties of

Choose an answer

Dilute solutions which behave as nearly ideal solution

Concentrated solution which behave as nearly non-ideal solution

Both a and b

Neither a nor b

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 has been dissolved per dm3 of solution. The molarity of solution is.

Choose an answer

0.5 M

0.25 M

1 M

2 M

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

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

An aqueous solution of ethanol in water has vapour pressure.

Choose an answer

Equal to that of water

Equal to that of ethanol

More than that of water

Less than that of water

Depression of freezing point method is used for determination of molar masses of

Choose an answer

Electrolytes

Non-volatile solids

Volatile solids

Volatile liquids

The molal boiling point constant is the ratio of elevation of boiling point to

Choose an answer

Molarity

Mole fraction of solvent

Molality

Mole fraction of solute

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