Q.1
If both the forward and reverse reaction rates are equal in the equilibrium is said to be ____________
  • a) dynamic equilibrium
  • b) equilibrium mixture
  • c) static equilibrium
  • d) newton equilibrium
Q.2
Physical equilibrium is the same as the chemical equilibrium.
  • a) true
  • b) false
Q.3
Which of the following characteristics of chemical equilibrium is true?
  • a) equilibrium is dynamic in nature
  • b) equilibrium cannot be attained from either side
  • c) equilibrium cannot be obtained in a closed container
  • d) equilibrium state is affected by the presence of a catalyst
Q.4
Which of the following is an example of solid-liquid equilibrium?
  • a) water and steam at hundred degrees centigrade
  • b) water and ice at 0-degree centigrade
  • c) the point where Ammonia is sublimized
  • d) boiling point of water
Q.5
Amount of a gas that is dissolved in a solvent depends on the pressure of the solvent.
  • a) True
  • b) False
Q.6
Which of the following statements is false regarding the equilibrium constant?
  • a) it has a definite value for every chemical reaction at a particular temperature
  • b) it is independent of initial concentrations of the reactants
  • c) it is dependent on the presence of a catalyst
  • d) if K is the equilibrium constant for a backward reaction then the forward reaction’s equilibrium constant is 1/k
Q.7
What will happen if the rate of evaporation is equal to the rate of condensation in the water?
  • a) solid-liquid equilibrium
  • b) liquid-vapor equilibrium
  • c) solid-vapor equilibrium
  • d) melting
Q.8
Select the correct equilibrium involving physical equilibrium.
  • a) it is possible only in a closed system at a given temperature
  • b) both forward and backward does not occur at the same rate
  • c) there is a dynamic but an unstable condition
  • d) measurable properties of the system do not remain constant
Q.9
When solid sugar dissolves in the solution __________ equilibrium is attained.
  • a) liquid vapor
  • b) solid liquid
  • c) solid vapor
  • d) no
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