A. equal to the mole fraction of solvent
B. equal to the mole fraction of solute
C. directly proportional to the mole fraction of solute
D. both B & C
Related Mcqs:
- The relative lowering of vapour pressure is directly proportional to molality if the solution is________________?
A. concentrated
B. dilute
C. saturated solution
D. all of the above - 18g glucose is dissolved in 90g water the relative lowering in vapour pressure is equal to ___________________?
A. 8
B. 5.1
C. 6
D. one/fifty one - Vapour pressure is not affected by_______________?
A. Surface area
B. temperature
C. intermolecular forces
D. atmospheric pressure - A substance having very high vapour pressure at its melting point on heating will show_______________?
A. Melting
B. Sublimation
C. Decomposition
D. Condensation - When Ammonia is used as a refrigerant in vapour compression cycle?
A. Cu Tubing used
B. Steel tubes used
C. Both a & b
D. Material does not effect by refrigerantSubmitted by: Ghulam Murtaza
- The amount of heat absorbed when one mole of a liquid is changed into gas at its boiling point is_____________________?
A. Molar heat of sublimation
B. Molar heat of fusion
C. Molar heat of vapourization
D. Latent heat of that liquid - Secondary cell is_____________________?
A. rechargeable
B. non rechargeable
C. electrolytic cell
D. Daniel cell - The halogen having highest electron affinity is_____________________?
A. Fluorine
B. Chlorine
C. Bromine
D. Iodine - The relative attraction of the nucleus for the electrons in a chemical bond is called _________________?
A. Ionization energy
B. Electron affinity
C. Electro negativity
D. None of the above - What is the relative rate of effusion of CO and CO2 ?
A. CO is 1.25 times faster than CO2
B. CO is 3.75 times faster than CO2
C. CO is 1.25 times faster than CO
D. Both diffuse at the same rate
