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Practice Online Test Series for JEE Main 2018 & NEET 2018
The diagram given below is a vapour pressure vs composition diagram for a binay solution of A and B.
On freezing an acqueous solution of sugar, the solid that starts separating out is
At low concentrations, the statement that equimolal solutions under a given set of experimental conditions have equal osmotic pressure is true for
The boiling point of an azeotropic mixture of water and ethanol is less than that of water and ethanol. The mixture shows
All form ideal solution except
The solubility of a gas increase in a liquid with
0.1 M NaCl and 0.1 M `CH_3COOH` are kept in separated containers. If their osmotic pressure are `P_1` and `P_2` respectively then what is the correct statement?
Which of the following is not correct for ideal solution?
The vapour pressure of a pure liquid A is 70 torr at `27^oC`. It forms an ideal solution with another liquid B. The mole fraction of B is 0.2 in liquid mixture and total vapour pressure of the solutions in 84 torr at `27^oC`. The vapour pressure of pure liquid B at `27^oC`
The vapour pressure of pure A is 10.0 torr and at the same temperature when 1 g of B is dissolved in 20 g of A, its vapour pressure is reduced to 9.0 torr. If the molecular weight of A is 200 a.m.u, then the molecular weight of B is
Osmotic pressure is 0.0821 atm at a temperature of 300 K. Find concentration of the solution of urea in mole/litre
The freezing point of 0.1 M solution of glucose is `-1.86^oC`. If an equal volume of 0.3 M glucose solution is added, the freezing point of the resulting solution will be
The values of observed and calculated molecular weights of silver nitrate are 92.64 and 170 respectively. The degree of dissociation of silver nitrate will be
Acetic acids exists in benzene solution in the dimeric form. In an actual experiment the van’t Hoff factor was found to the 0.52. Then the degree of association of acetic acid is
A 0.001 molal solution of `[Pt(NH_3)_4Cl_4]` in water had a freezing point depression of `0.0054^oC`. If `K_f` for water is 1.80, the correct formulation of the above molecule is
The number of optically active isomers of `C_4H_9Br` is:
Which is the pair of functional isomers?
The number of primary , secondary and tertiary amines possible with the molecular formula `C_3H_9N` are respectively:
Tautomerism will be exhibited by
Acetone and Propen-2-ol are:
