Related Mcqs:

1. Pick out the wrong statement. Raoult’s law does not apply, when the______________________?

   A. Size of component molecules are not equal
   B. Attractive forces between like and unlike molecules in the solution are approximately equal
   C. Component molecules are non-polar
   D. Chemical combination or molecular association between unlike molecules takes place in the
   formation of solution

2. Raoult’s law applies to the___________________?

   A. All liquid solutions
   B. Non-ideal solution only
   C. Non-volatile solute
   D. Solvents

3. With increase in temperature, the rate of leaching increases, because the___________________?

   A. Diffusivity of solute increases
   B. Viscosity of solvent decreases
   C. Thermal conductivity of solute increases
   D. None of these

4. The relative saturation of an unsaturated mixture of gas and vapor is independent of the___________________?

   A. Nature of the vapor
   B. Temperature of the mixture
   C. Composition of the mixture
   D. None of these

5. During bottling of cold drinks (e.g. Pepsi), the main resistance to mass transfer for the absorption of carbon dioxide in water lies in the___________________?

   A. Gas film
   B. Liquid film
   C. Liquid-gas interface
   D. None of these

6. Henry’s law states that the ________________________?

   A. Partial pressure of a component over a solution is proportional to its mole fraction in the
   liquid
   B. Partial pressure of a component over a solution is proportional to the mole fraction in the
   vapour
   C. Vapour pressure is equal to the product of the mole fraction and total pressure
   D. Partial pressure is equal to the product of the mole fraction and total pressure

7. Which of the following can be calculated theoretically using steam table and Dalton’s law of partial pressure; if the relative humidity and dry bulb temperature of moist air is known ?

   A. Dew point
   B. Humidity ratio
   C. Wet bulb temperature
   D. None of these

8. The partial pressure distribution of an ideal gas diffusing through another stagnant ideal gas at steady state follows a/an _________________ law?

   A. Exponential
   B. Parabolic
   C. Linear
   D. Cubic

9. The McCabe ΔL law states that the____________________?

   A. Molar heats of vaporisation of components are nearly equal
   B. Linear crystal growth rate depends on the degree of super-saturation
   C. Linear crystal growth rate does not depend on the crystal size
   D. Linear crystal growth rate depends on the crystal size

10. Raoult’s law is applicable to the_____________________?

    A. Ideal solutions
    B. Real solutions
    C. Mixture of water and alcohol
    D. Non-ideal gases