Beta Question Bank for Medical: Chemistry>Chapter 8 - Solutions>EXERCISE-I (Conceptual Questions)>Q 24

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The relative lowering of vapour pressure is equal to the mole fraction of the non-volatile solute. This statement was given by:

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Beta Question Bank for Medical: Chemistry>Chapter 8 - Solutions>EXERCISE-I (Conceptual Questions)>Q 26

The vapour pressure of a solution having solid as solute and liquid as solvent is:

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Beta Question Bank for Medical: Chemistry>Chapter 8 - Solutions>EXERCISE-I (Conceptual Questions)>Q 28

One mole of non-volatile solute is dissolved in two mole of water. The vapour pressure of the solution relative to that of water is:

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Beta Question Bank for Medical: Chemistry>Chapter 8 - Solutions>EXERCISE-I (Conceptual Questions)>Q 29

The vapour pressure of a dilute aqueous solution of Glucose is

750 mm

of mercury at

373 K .

The mole fraction of solute is -

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Beta Question Bank for Medical: Chemistry>Chapter 8 - Solutions>EXERCISE-I (Conceptual Questions)>Q 30

The vapour pressure of water at room temperature is $23.8 mm$ of $Hg .$ The vapour pressure of an aqueous solution of sucrose with mole fraction $0.1$ is equal to:

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Beta Question Bank for Medical: Chemistry>Chapter 8 - Solutions>EXERCISE-I (Conceptual Questions)>Q 31

The vapour pressure of pure liquid

A

is

10 torr

and at the same temperature when

1 g

of

B

solid is dissolved in

20 g

of

A

, its vapour pressure is reduced to

9.0 torr

. If the molecular mass of

A

is

200 amu

, then the molecular mass of

B

is:

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Beta Question Bank for Medical: Chemistry>Chapter 8 - Solutions>EXERCISE-I (Conceptual Questions)>Q 32

The boiling point of

C_{6} H_{6}, {CH}_{3} OH, C_{6} H_{5} {NH}_{2}

and

C_{6} H_{5} {NO}_{2}

are

80 ° C, 65 ° C, 184 ° C

and

212 ° C

, respectively. Which one will show the highest vapour pressure at room temperature?

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Beta Question Bank for Medical: Chemistry>Chapter 8 - Solutions>EXERCISE-I (Conceptual Questions)>Q 33

If Raoult's law is obeyed, the vapour pressure of the solvent in a solution is directly proportional to:

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Beta Question Bank for Medical: Chemistry>Chapter 8 - Solutions>EXERCISE-I (Conceptual Questions)>Q 34

The vapour pressure of a pure liquid

A

is

70 torr

at

27^{0} C

. It forms an ideal solution with another liquid

B

. The mole fraction of

B

is

0.2

and the total vapour pressure of the solution is

84 torr

at

27^{0} C

. The vapour pressure of pure liquid

B

at

27^{0} C

is ______.