Revise smart, understand Better

0.000 s

Revise smart, understand Better

Acid-Base Equilibrium
Atomic Structure And Related Patterns In The Periodic Table
Bonding And Structure, And Intermolecular Forces
Chemical Equilibrium
D-Block Elements (Transition Elements)
DESCRIPTIVE INORGANIC CHEMISTRY: Group IV (14)
DESCRIPTIVE INORGANIC CHEMISTRY: Halogens (GROUP VII or 17)
DESCRIPTIVE INORGANIC CHEMISTRY: Modern Periodic Table, Periodicity And S-Block Elements
Functional Group Chemistry And Reaction Mechanism
ORGANIC CHEMISTRY: Fundamentals
Raoult’s Law And Phase Equilibria
Reaction Kinetics
Redox Equilibrium
The Mole Concept

5/30 MCQs for:

Raoult’s Law And Phase Equilibria

Which of the following units is useful in relating concentration of solution with its vapour pressure?

Mass percentage.

Parts per million.

Molality.

Mole fraction.

Which of the following statements is true for a pair of miscible liquids whose mixtures shows negative deviation from Raoult’s law?

The total volume of the mixture is increased.

Slight drop in temperature is observed when the liquids are mixed.

The total vapour pressure decreases.

The intermolecular forces are broken.

Low concentration of oxygen in the blood and tissues of people living at high altitude is due to:

Low atmospheric pressure.

Low temperature.

Both low temperature and high atmospheric pressure.

High atmospheric pressure.

On the basis of information given below mark the correct option. (A) In bromoethane and chloroethane mixture intermolecular interactions of A–A and B–B type are nearly same as A–B type interactions. (B) In ethanol and acetone mixture A–A or B–B type intermolecular interactions are stronger than A–B type interactions. (C) In chloroform and acetone mixture A–A or B–B type intermolecular interactions are weaker than A–B type interactions.

Solution (C) will show positive deviation from Raoult’s law.

Solution (A) will follow Raoult’s law.

Solution (B) will show negative deviation from Raoult’s law.

Solution (B) and (C) will follow Raoult’s law.

Ethanol, b.pt 78.5 °C and water form an azeotropic mixture having a b.pt of 78.2 °C and a composition of 95.6 % ethanol. What will be result of fractionally distilling a mixture containing 75 % ethanol?

Pure ethanol and an azeotropic mixture of ethanol/water is obtained.

Pure ethanol is obtained.

Pure water is obtained.

Pure water and an azeotropic mixture of ethanol/water is obtained.