On addition of solute in the solvent, the __________ of the solution decreases.

Addition of a non-volatile solute to a solvent produces a __________ in its solvent.

A

Freezing point elevation

B

Boiling point depression

C

Vapor pressure lowering

D

All of the above

The vapour pressure of a solution (made by dissolving a solute in a solvent) is __________ that of the pure solvent.

A

Less than

B

More than

C

Equal to

D

Either more or less; depends on the solvent

Minute depression of freezing point of a liquid solvent on addition of a solid solute can be best measured by a

A

Beckman thermometer

B

Dilatometer

C

Mercury thermometer

D

Bimetallic thermometer

Addition of a non-volatile solute to a pure solvent

A

Increases its freezing point

B

Increases its boiling point

C

Decreases its freezing point

D

Both B and C

In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres.

A

Polythene

B

PVC

C

Rayon

D

Polyvinyl acetate

Heat of solution in a system in which both solute and solvent are liquids is termed as

A

Heat of solvation

B

Heat of hydration

C

Standard integral heat of solution

D

Heat of mixing

Osmotic pressure of a dilute solution of a non volatile solute in a solvent obeying Raoult's law is proportional to the

A

Temperature

B

Volume of solution

C

Moles of non-volatile solute

D

None of these

Solution X contains 7% (by weight) of liquid M and solution Y contains 14.5% (by weight) of liquid M. If 3 grams of solution X is mixed with 2 grams of solution Y, then liquid M accounts for what percent of the weight of the resulting solution?

A

6.09%

B

10%

C

10.75%

D

21.5%

100 kg of solution A is mixed with 60 kg of solution B . If solution A has tin and copper in the ratio 1: 4 and solution B has lead and tin in the ratio 3 :2 then what is the amount of tin in the new solution?

A

70 kg

B

36 kg

C

44 kg

D

56 kg

Solution X is 10% percent alcohol by volume, and solution Y is 30 percent alcohol by volume. How many milliliters of solution Y must be added to 200 milliliters of solution X to create a solution that is 25 percent alcohol by volume?

A

600

B

800

C

300

D

250

E

None of these

On addition of solute in the solvent, the __________ of the solution decreases.

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