Related Questions

Which of the following has the least (almost negligible) effect on the solubility of a solute in a solvent?
A Temperature
B Nature of solute
C Pressure
D Nature of solvent
The vapour pressure of a solution (made by dissolving a solute in a solvent) is __________ that of the pure solvent.
A Less than
B More than
C Equal to
D Either more or less; depends on the solvent
Addition of a non-volatile solute to a solvent produces a __________ in its solvent.
A Freezing point elevation
B Boiling point depression
C Vapor pressure lowering
D All of the above
Sodium __________ has inverted solubility curve i.e. its solubility increases with the lowering of temperature.
A Carbonate (monohydrate)
B Chloride
C Thiosulphate
D Bisulphite
For most salts, the solubility increases with rise in temperature, but the solubility of __________ is nearly independent of temperature rise.
A Sodium chloride
B Sodium carbonate monohydrate
C Anhydrous sodium sulphate
D Hypo
In an interphase mass transfer process, the lesser the solubility of a given solute in a liquid, the higher are the chances that the transfer process will be
A Liquid phase resistance-controlled
B Gas phase resistance controlled
C Impossible
D Driven by a non-linear driving force
In case of a ternery system involving two liquid components and a solute, the ratio of the concentration of the solute in the two phases at equilibrium is called the distribution co-efficient. The distribution co-efficient depends upon the
A Solute concentration
B Temperature
C Both A & B
D Neither A nor B
With rise in pressure, the solubility of gases in solvent, at a fixed temperature
A Increases
B Decreases
C Remains unchanged
D Decreases linearly
'Solvent naphtha' used mostly as a solvent in paints and perfumery is produced by the __________ of virgin naphtha into small boiling range cuts.
A Steam reforming
B Distillation
C Desulphurisation
D None of these
In case of dry spinning of polymers, the polymer solution in a volatile solvent is forced through the spinnerates into a warm air chamber, where the solvent evaporates leaving behind the polymer in the filament form. Dry spinning is used for __________ fibres.
A Polythene
B PVC
C Rayon
D Polyvinyl acetate

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