Out of the following which is not a colligative property?
Lowering of vapour pressure
Elevation of boiling point
Osmotic pressure
Freezing point
A solution of acetone in ethanol
Shows a negative deviation from Raoult's law
Shows a positive deviation from Raoult's law
is near an ideal solution
Obeys Raoult's law
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
Formation of a solution from two components can be considered as
Solution so formed will be ideal, if
ΔHsoln = ΔH1 - ΔH2 - ΔH3
ΔHsoln = ΔH3 - ΔH1 - ΔH2
ΔHsoln = ΔH1 + ΔH2 + ΔH3
ΔHsoln = ΔH1 + ΔH2 - ΔH3
A solution of urea (mol.mass 56 g mol-1) boils at 100.18oC at the atmosphere pressure. If kf and kb for water are 1.86 and 0.51 2 K kg mol-1 respectively, the above solution will freeze at.
-6.54oC
6.54oC
0.654oC
-0. 654oC
The better concentration term when the amount of solute is very small is
Molarity
Molality
Parts per million
Mole fraction
A 500g of tooth paste sample has 0.4g fluoride concentration. The concentration of fluoride in ppm is
800
400
600
250
A solution contains non- volatile solute of molecular mass, M2. Which of the following can be used to calculate the molecular mass of solute in terms of osmotic pressure?
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
A 0.0020 m aqueous solution of an ionic compound Co(NH3)5(NO2)CI freeze at -0.00732oC. Number of moles of ions inwhich 1 mole of ionic compound produces on being dissolved in water will be (kf = -1.86oC/m)
2
3
4
1