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Select Lessons (14)
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
A homogeneous and physically distinct part of a system is known as:
A mixture.
Immiscible liquids.
An ideal mixture.
A phase.
Hexane and heptane form an ideal mixture. The vapour pressures of pure hexane and heptane at 298 K are 19 kPa and 36 kPa respectively. Calculate the total vapour pressure of the solution that contains 0.978 mole of hexane and 0.364 mole of heptane.
33.37 kPa.
13.85 kPa.
23.61 kPa.
9.76 kPa.
At equilibrium the rate of dissolution of a solid solute in a volatile liquid solvent is:
Greater than the rate of crystallisation.
Equal to the rate of crystallisation.
Less than the rate of crystallisation.
Zero.
Which of the following pairs of liquids, on mixing will form a solution that will deviate negatively from Raoult’s law ?
Propanone and trichloromethane.
Ethanol and water.
Propan-2-ol and propan-1-ol.
Methanol and water.
Low concentration of oxygen in the blood and tissues of people living at high altitude is due to:
Low temperature.
Both low temperature and high atmospheric pressure.
Low atmospheric pressure.
High atmospheric pressure.
