Related Questions

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
Extraction of pencillin employs a __________ extraction coloumn.
A Centrifugal
B Packed
C Plate
D None of these
A solute distributes itself between two non-miscible solvents in contact with each other in such a way that, at a constant temperature, the ratio of its concentrations in two layers is constant, irrespective of its total amount". This is
A The distribution law
B Followed from Margule's equation
C A corollary of Henry's law
D None of these
Solvent extraction is the terminology applied to the liquid-liquid extraction, which is preferred for the separation of the components of liquids, when
A Extracting solvent is cheaply & abundantly available
B One of the liquid components is heat sensitive
C Viscosity of liquid components is very high
D One of the liquid components has very high affinity towards the solvent
With increase in temperature, the rate of extraction in leaching (solid-liquid extraction system)
A Increases
B Decreases
C Remains unaffected
D Increases Linearly
In general, the specific heats of aqueous solutions __________ with increase in the concentration of the solute.
A Increase
B Decrease
C Remain unchanged
D None of these
With increase in the solute concentration, the specific heat of aqueous solutions
A Increases
B Decreases
C Remains unchanged
D Either A or B; depends on the type of solution
At very high concentration of enzymes, the rate of fermentation chemical reaction is __________ the concentration of reactants.
A Independent of
B Directly proportional to
C Inversely proportional to
D Proportional to the square of
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
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

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