Related Questions

Molality is defined as the number of gm moles of solute per __________ of solvent.
A litre
B gm
C kg
D m3
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
On addition of solute in the solvent, the __________ of the solution decreases.
A Boiling point
B Freezing point
C Vapour pressure
D Both B and C
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
Number of gm moles of solute dissolved in one litre of a solution is called its
A Equivalent weight
B Molarity
C Molality
D Normality
In a reversible chemical reaction (where, Δx = number of moles of products-number of moles of reactants )
A Addition of inert gas favours the forward reaction, when Δx is positive
B Pressure has no effect on equilibrium, when Δn = 0
C Addition of inert gas has no effect on the equilibrium constant at constant volume for any value of Δx (+ ve, - ve) or zero)
D All of the above
'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
Dissolving a solute in a solvent does not change its
A Specific heat
B Vapour pressure
C Viscosity
D None of these

Next steps