Stoichiometry MCQs

Question 1

Which of the following has the smallest least effect on the solubility of a solute into the solvent?

Accepted Answer

Pressure

Answer

Nature of the solute

Answer

Nature of the solvent

Answer

Temperature

Question 2

1 m 3 is approximately equal to

Accepted Answer

35 ft 3

Answer

28 litres

Answer

4.5 litres

Answer

4.5 ft 3

Question 3

Roult's law is obeyed by a __________ solution.

Accepted Answer

None of these

Answer

Saturated

Answer

Molar

Answer

Normal

Question 4

Solution made by dissolving equimolar amounts of different solutes in the same amount of a given solvent will have the

Accepted Answer

Same elevation in boiling point

Answer

Different elevation in boiling point

Answer

Elevation in boiling point in the ratio of their molecular weights

Answer

None of these

Question 5

Two solutions A 1 and A 2 have pH value of 2 and 6 respectively. It implies that the solution

Accepted Answer

Both A & C

Answer

A 1 is more alkaline than solution A 2

Answer

A 1 is highly acidic

Answer

A 1 is very slightly acidic

Question 6

A gas mixture contains 6 moles of H 2 and 2 moles of N 2 . If the total pressure of the gaseous mixture is 4 kgf/cm 2 ; then the partial pressure of N 2 in the mixture will be __________ kgf/cm 2 .

Accepted Answer

1

Answer

2

Answer

4

Answer

8

Question 7

The vapor pressure of liquids of similar chemical nature at any particular temperature __________ with increase in the molecular weight.

Accepted Answer

Decreases

Answer

Increases

Answer

Remains unchanged

Answer

Either A or B; depends on the liquid

Question 8

A vapor whose partial pressure is less than its equilibrium vapor pressure is called a __________ vapor.

Accepted Answer

Superheated

Answer

Saturated

Answer

Supersaturated

Answer

None of these

Question 9

According to the kinetic theory, the thermal conductivity of a monoatomic gas is proportional to

Accepted Answer

T 0.5

Answer

T

Answer

T 1.5

Answer

T 2