A solution containing components A and B follows Raoult's law, when
A-B attraction force is greater than A - A and B- B
A - B attraction force is less than A - A and B - B
A- B attraction force remains same as A - A and B - B
Volume of solution is different from sum of volumes of solute and solvent
Which of the following aqueous solutions has minimum freezing point?
0.01 m NaCl
0.005 m MgI2
0.005 m C2H5OH
0.005 m MgSO4
The vapour pressure, at a given temperature, of an ideal solution containing 0.2 mole of a non volatile solute and 0.8 mole of solvent is 60 mm of Hg. The vapour pressure of the pure solvent at the same temperature is.
150 mm of Hg
60 mm of Hg
75 mm of Hg
120 mm of Hg
If 0.1 M solution of glucose and 0.1 M solution of urea are placed on two sides of the semipermeable membrane to equal heights, then it will be correct to say that.
there will be no net movement across the membrane
Glucose will flow towards urea solution
Urea will flow towards glucose solution
Water will flow from urea solution to glucose
A 500g of tooth paste sample has 0.4g fluoride concentration. The concentration of fluoride in ppm is
800
400
600
250
The van't Hoff factor for an aqueous solution of Al2(SO4)3 is
3
5
9
4
A 5% solution of cane sugar (mol wt = 342) is isotonic with 1% solution of a substance X. The molecular weight of X is
34.2
171.2
68.4
136.8
If a hydrated crystal has vapour pressure greater than that of water vapour in the atmosphere, the crystal is
Hygroscopic
Efflorescent
Deliquescent
Phosphorescent
The volume strength of 1.5 N H2O2 solution is
4.8
5.2
8.4
8.8
