Colligative Properties

Author:Embibe Experts
NEET
IMPORTANT

Important Questions on Colligative Properties

MEDIUM
IMPORTANT

Which of the following observation indicates colligative property?

I. A 0.5 M NaBr solution has a higher vapour pressure than 0.5 M BaCl2.

II. A 0.5 M NaOH solution freezes at a lower temperature than pure water.

III. Pure water freezes at a higher temperature than pure ethanol.

EASY
IMPORTANT

Which of the following is not a colligative property?

EASY
IMPORTANT

A colligative property of a solution depends on the:

MEDIUM
IMPORTANT

Colligative properties have many practical uses, some of them may be:

I: Melting of snow by salt.

II: Desalination of seawater.

III: Determination of molar mass.

IV: Determination of melting point and boiling point of solvent actual practical uses are:

MEDIUM
IMPORTANT

Molecules of benzoic acid (C6H5COOH) dimerise in benzene. w g of the acid dissolved in 30 g of benzene shows a depression in freezing point equal to 2 K. If the percentage association of the acid to form a dimer in the solution is 80, then "w" is: (Given that Kf = 5 kg mol1, Molar mass of benzoic acid = 122 g mol1)

MEDIUM
IMPORTANT

Colligative properties have many practical uses, some of them may be:
I : Melting of snow by salt
II : Desalination of sea water
III : Determination of molar mass
IV : Determination of melting point and boiling point of solvent Actual practical uses are:

EASY
IMPORTANT

Which of the following is incorrect?

MEDIUM
IMPORTANT

When 45 gm solute is dissolved in 600 gm water, freezing point lowers by 2.2K. Calculate the molar mass of solute. Kf=1.86K kg mol-1
 

MEDIUM
IMPORTANT

The best colligative property used for the determination of molecular masses of polymers is:

MEDIUM
IMPORTANT

Colligative properties of the solution depend upon: