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
Submitted by :- Jamil Ahmed
CHEMISTRY
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ppm means________________?
A. parts of solute in 1 parts of solvent
B. parts of solvent in 1 parts of solute
C. parts of solute in one million parts of solution
D. parts of solvent in one million parts of solute
Submitted by :- Jamil Ahmed
Hydration is a process in which_________________?
A. Molecules are surrounded by solvent molecules
B. Ions are surrounded by solvent molecules
C. Both ions and molecules are surrounded by solvent molecules
D. Both ions and molecules are surrounded by water molecules
Submitted by :- Jamil Ahmed
Beckmanns apparatus is used to measure_______________?
A. boiling point elevation
B. depression in freezing point
C. lowering of vapour pressure
D. lowering of osmotic pressure
Submitted by :- Jamil Ahmed
The determination of correct molecular weight from Raoults law is applicable to_________________?
A. a volatile solute in dilute solution
B. a non-electrolyte & non volatile solute in concentrated solution
C. a non-electrolyte & non volatile solute in concentrated solute
D. non volatile solute in a dilute solution
Submitted by :- Jamil Ahmed
Concentration of solute molecule when they are in equilibrium with solid substance at particular temperature is called________________?
A. saturated solution
B. solubility
C. unsaturated solution
D. super saturated solution
Submitted by :- Jamil Ahmed
If the volume of solution is equal to sum of volumes of its all components then the solution_____________?
A. will be an ideal solution
B. will be non-ideal solution
C. will show deviations from Raoults law
D. both b & c
Submitted by :- Jamil Ahmed
58.5g of of NaCl per 1 dm3 of solution of NaCl in water the concentration of solution will be___________________?
A. 0.1 M
B. 1 m
C. 1 M
D. 0.1 N
Submitted by :- Jamil Ahmed
Voltaic cell can be recharged by______________?
A. by addition of fresh solution
B. by replacing external circuit with external source of electricity
C. by removal of solution
D. by heating it
Submitted by :- Jamil Ahmed