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PHT231-Lec 9 & 10

Authored by Amal Makhlouf

Chemistry

University

Used 2+ times

PHT231-Lec 9 & 10
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The most suitable dosage form for intravenous lipid nutrients is.....

Oily solution

O/W emulsion

W/O emulsion

O/W/O

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The above figure represents ...........

Electric double layer

DLVO theory

Effect of electrolytes on suspension stability

Effect of electrolytes on emulsion stability

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Hard cake is formed at region ........

1

2

3

2 & 3

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

Flocculated suspension is formed in the following region......

1

2

3

2&3

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Flocculated suspension is pharmaceutically preferred because ....

The sediment size is large

The sediment is easy to re-dispersed

The supernatant is clear

The sediment size is small

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The following figure represents the gradual addition of potassium phosphate to a positively charged drug suspension to increase its stability.

Carefully examine the graph and answer

Graph A represents the relationship between ................ and the concentration of potassium phosphate.

Degree of flocculation

Viscosity of the suspension

Zeta potential

Sediment height

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

The following figure represents the gradual addition of potassium phosphate to a positively charged drug suspension to increase its stability. Carefully examine the graph and answer

1.     Graph B represents the relationship between ................ and the concentration of potassium phosphate.

Degree of flocculation

Viscosity of the suspension

Zeta potential

Sediment height

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