QuizMaster

Question: Chromatography is based on the
[A].

different rate of movement of the solute in the column

[B].

separation of one solute from other constituents by being captured on the adsorbent

[C].

different rate of movement of the solvent in the column

[D].

any of the above

Answer: Option A

Explanation:

No answer description available for this question.

Question: The stage wise operation of adsorption is called
[A].

contact filtration

[B].

conventional adsorption

[C].

affinity adsorption

[D].

ion exchange

Answer: Option A

Explanation:

No answer description available for this question.

Question: The correlation often employed to correlate adsorption data for protein is (where Ymax is the maximum amount of solute adsorbed per mass of adsorbent, X is the mass fraction of solute in the diluent phase in solute-free basis, KL is a constant and Y is the equilibrium value of the mass of solute adsorbed per mass of adsorbent)
[A].

Y = YmaxX/(KL+X)

[B].

Y = Ymax/(KL+X)

[C].

Y = YmaxX/KL

[D].

Y = Ymax- X/ (KL+X)

Answer: Option A

Explanation:

No answer description available for this question.

Question: An ion exchange resin is composed of
[A].

polymeric network

[B].

ionic functional groups

[C].

counter ions

[D].

all of these

Answer: Option D

Explanation:

No answer description available for this question.

Question: Conventional adsorption is a
[A].

reversible process

[B].

irreversible process

[C].

either reversible or irreversible

[D].

none of these

Answer: Option A

Explanation:

No answer description available for this question.

Question: For the extractions operation, the selectivity should be
[A].

> 1

[B].

< 1

[C].

1

[D].

zero

Answer: Option A

Explanation:

No answer description available for this question.

Question: Selectivity can be expressed as
[A].

ratio of the distribution coefficients in different solute

[B].

mass fraction of the solute in the extract phase at equilibrium

[C].

mass fraction of the solute in the raffinate phase

[D].

ratio of the mass fraction of the solute in the extract phase to the raffinate phase

Answer: Option A

Explanation:

No answer description available for this question.

Question: A system which require less solvent and produces a more concentrated extract phase, is desired with a
[A].

large distribution coefficients

[B].

small distribution coefficients

[C].

very small distribution coefficients

[D].

constant distribution coefficients

Answer: Option A

Explanation:

No answer description available for this question.

Question: The effectiveness of a solvent can be measured by the
[A].

distribution coefficients

[B].

selectivity

[C].

both (a) and (b)

[D].

diffusivity

Answer: Option C

Explanation:

No answer description available for this question.

Question: The optimum wet solid content for the cell suspension for a bead mill is typically somewhere between
[A].

5-15% by volume

[B].

15-30% by volume

[C].

30-60% by volume

[D].

60-90% by volume

Answer: Option C

Explanation:

No answer description available for this question.