Question # 1

In cold countries ethylene glycol is added to water in radiators of cars during winter. It results in

Choose an answer

Lowering in b.pt

Reducing viscosity

Reducing specific heat

Lowering in freezing pt

The concentration units independent of temperature would be

Choose an answer

Normality

Mass-volume precent

Molality

Molarity

What happens when isotonic solution of A (mol.wt.342) and B (mol.wt 60) are put in to communication through semipermeable membrane?

Choose an answer

Transference of solvent from solution A to that of B take place

Transference of solvent from solution B to that of A takes place

No transference of solvent from solution A to that of B takes place

Change in temperature of solutions takes place

5g of glucose is dissolved fro 100 cm of solution. Percentage of solution is :

Choose an answer

5 % v/w

5 % w/v

5 % w/w

When the solute is present in trace quantities the following expression is used

Choose an answer

Gram per million

Milligram percent

Microgram percent

Parts per million

At 25°C, the highest osmotic pressure is exhibited by 0.1 M solution of

Choose an answer

CaCl₂

KCl

Glucose

Urea

Which if the following has the highest freezing point at one atmosphere

Choose an answer

0.1 M NaCI

0.1 M sugar solution

0.1 M BaCI₂

0.1 M FeCI₂solution

If 5.85 g of NaCl are dissolved in 90 g of water, the mole fraction of NaCl is

Choose an answer

0.1

0.01

0.2

0.0196

10% aqueous solution of NaCI has molarity

Choose an answer

1.7 M

2.7 M

0.17 M

3.7 M

The depression of freezing point is directly proportional to

Choose an answer

Mole fraction of the solution

Molarity of the solution

Molality of the solution

Molarity of the solvent

The process in which the solvent molecules are surrounded and interact with solute ions or molecules is called

Choose an answer

Solvation

Hydration

Hydrogenation

None

50 mL of 10 N H₂SO₄. 25mL of 12 N Hcl and 40 mL of 5N HNO₃are mixed and the volume of the mixture is made 100 mL by adding water. The normality of resulting will be

Choose an answer

1 N

2 N

3 N

9 N

An azeotropic mixture showing it's positive deviation from Raoult's law, the volume of the mixture is :

Choose an answer

Slightly more than the total volume of the components.

Slightly less than the total volume of the components.

Equal to the total volume of the components.

None of these.

The vapour pressure of two liquids 'p' and 'Q' are 80 and 60 torr respectively. The total vapour pressure of solution obtained by mixing 3 mole of P and 2 mol of Q would be

Choose an answer

140 torr

20 torr

68 torr

72 torr

How many g of dibasic acid (mol. wt. 200) should be present in 100 ml of the aqueous solution to give 0.1 Normality?

Choose an answer

1 g

2 g

10 g

20 g

Which of the following salts mixed with ice to make the freezing mixture used in ice cream machine

Choose an answer

KNO₃

NH₄NO₃

AgNO₃

Mg(NO₃)₂

Saturated solution of NaCl on heating becomes

Choose an answer

Super saturated

Unsaturated

Remains saturated

None

3.6% WN solution of HCI has the molairity

Choose an answer

1.0

1.15

0.98

1.98

If the ionic product of a solution is less than the solubility product, the solution is

Choose an answer

Supersaturated

Unsaturated

Ideal

Saturated

The percentage by weight of NaCl, if 6.0 g of NaCl is dissolved in 120 g of water is

Choose an answer

10.5 %

5%

8.02%

11.5%

The substance which contains the water of crystallization is called

Choose an answer

Hydrated

Solvated

Crystal

None

The molal depression constant depends upon

Choose an answer

Nature of solute

Nature of solvent

Δ H_solution

Vapour pressure of solution

Solution which distill without change in composition or temperature are called

Choose an answer

Amorphous

Azeotropic mixture

Ideal

Super saturated

Freezing point depression is measured by

Choose an answer

Beckmann's apparatus

Lands Berger's method

Antifreeze apparatus

All of the above

Which of the following will have the highest boiling point at 1 atm pressure?

Choose an answer

0.1 M NaCl

0.1 M Sucrose

0.1 M BaCl₂

0.1 M Glucose

Colligative properties are the properties of :

Choose an answer

Dilute solutions which behave as nearly ideal solutions.

Concentrated solutions which behave as nearly non-ideal solutions.

Both(i) and (ii)

Neither (i) nor (ii)

The molarity of the solution containing x grams (NH₄)₂SO₄in 500 cm³of the solution is 0.6 what is x

Choose an answer

39.6

45.1

40.5

42.7

(A) is one molar NaCl solution and (b) is 1 molal NaCl solutin :

Choose an answer

A and B are of same strength.

A is more Concentrate than B.

b is more Concentrate than A.

None of above.

Partial pressure of a solution component is directly proportional to its mole fraction. This statement is known as

Choose an answer

Henry's law

Raoult's law

Distribution law

Ostwald's dilution law

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

Choose an answer

It is saturated.

It shows positive deviation from Raoult's law.

It show negative deviation from Raoult's law.

It is metastable.

The osmotic pressure of solution increases if

Choose an answer

Temperature is decreased

Solution constant is increased

Number of solute molecules are increased

Volume is increased

More Classes

Other Links

ECAT Chemistry Chapter 9 Solutions 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

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