MCQ NO 1942 | Medicinal chemistry
Find the wrong pair
Find the wrong pair
Anonymous Quiz
10%
a. Prazosin :α1 blocker
24%
b. Guanabenz: α2 agonist
29%
c. Phenylephrine: α1 agonist
37%
d. Phenylephrine: α2 antagonist
MCQ NO 1943 | Medicinal chemistry
Codeine is-------------.
Codeine is-------------.
Anonymous Quiz
37%
a. Methylated analog of morphine
35%
b. Acetylated analog of morphine
20%
c. Antagonist of morphine
8%
d. Metabolite of morphine
MCQ NO 1944 | medicinal chemistry
What is relation between xylometazoline and oxymetazoline?
What is relation between xylometazoline and oxymetazoline?
Anonymous Quiz
23%
a. Both are α2 adrenergic agonists.
23%
b. Both are 2-aminoimidazolines
39%
c. Oxymetazoline is metabolite of xylometazoline
15%
d. Both are adrenergic antagonists
MCQ NO 1945 | medicinal chemistry
Which one of the following is Cytokine inhibitor?
Which one of the following is Cytokine inhibitor?
Anonymous Quiz
36%
a. Abatacept
33%
b. Fluoxetine
20%
c. Propranolol
11%
d. Aldosterone
MCQ No. 1946 | Physical pharmaceutics
Which of the following is/ are the theories of emulsification?
Which of the following is/ are the theories of emulsification?
Anonymous Quiz
6%
Monomolecular adsorption theory
11%
Multimolecular adsorption theory
7%
Solid particle adsorption theory
76%
All of the above
MCQ No. 1947 | Physical pharmaceutics
Which of the following is not the cause of Instability in emulsion
Which of the following is not the cause of Instability in emulsion
Anonymous Quiz
8%
Upward creaming
22%
Phase inversion
12%
Downward creaming
57%
Mottling
MCQ No. 1948 | Physical pharmaceutics
Emulsion have a ......... shelf life
Emulsion have a ......... shelf life
Anonymous Quiz
25%
Large
67%
Short
5%
No
3%
None of the above
MCQ No. 1949 | Physical pharmaceutics
Creaming is a.......... process
Creaming is a.......... process
Anonymous Quiz
43%
Reversible
37%
Irreversible
19%
Both
1%
None
MCQ No. 1950 | Physical pharmaceutics
The density of the dispersed phase is more than that of the dispersion medium. According to the Stokes' equation, the creaming is:
The density of the dispersed phase is more than that of the dispersion medium. According to the Stokes' equation, the creaming is:
Anonymous Quiz
13%
At the center of emulsion
22%
In both directions
38%
In upward direction
27%
In downward direction
MCQ No. 1951 | Physical pharmaceutics
The distribution of globules is not uniform in an emulsion. This stage is termed as:
The distribution of globules is not uniform in an emulsion. This stage is termed as:
Anonymous Quiz
8%
Baking
19%
Caking
58%
Coalescence
15%
Creaming
MCQ No. 1952 | Physical Pharmaceutics
Downward creaming means ........ rate of sedimentation
Downward creaming means ........ rate of sedimentation
Anonymous Quiz
44%
Negative
45%
Positive
8%
Same
4%
No charge
MCQ No. 1953 | Physical pharmaceutics
Ideal Phase volume ratio for stable emulsions is
Ideal Phase volume ratio for stable emulsions is
Anonymous Quiz
22%
25:75
49%
50:50
24%
75:25
6%
33:66
MCQ No. 1954 | Physical pharmaceutics
According to Stokes law, the creaming of emulsions is indirectly proportional to:
According to Stokes law, the creaming of emulsions is indirectly proportional to:
Anonymous Quiz
23%
Density of the dispersed phase
37%
Particle size of the globules
12%
Gravity
28%
Viscosity of the medium
MCQ No. 1955 | Physical pharmaceutics
When oil and water are triturated together, the interfacial free energy was observed to be increased. What does it indicate?
When oil and water are triturated together, the interfacial free energy was observed to be increased. What does it indicate?
Anonymous Quiz
36%
Decrease in the interfacial tension
36%
Decrease in the stability
18%
Increase in stability
11%
Stable film formation
MCQ No. 1956 | Physical pharmaceutics
The HLB range of an emulsifier employed in the preparation of water-in-oil emulsion is:
The HLB range of an emulsifier employed in the preparation of water-in-oil emulsion is:
Anonymous Quiz
41%
3 to 6
32%
7 to 12
20%
13 to 15
7%
More than 15
MCQ No. 1957 | Physical pharmaceutics
Microemulsions contain globules of the size about .........
Microemulsions contain globules of the size about .........
Anonymous Quiz
3%
0 µm
19%
1 µm
59%
0.1 µm
18%
0.01 µm
MCQ No. 1958 | Physical pharmaceutics
The phase inversion occur due to
The phase inversion occur due to
Anonymous Quiz
9%
Changes in type of emulsifying agent
16%
Change in phase volume ratio
72%
Both a & b
3%
None of the above
MCQ No. 1959 | Physical pharmaceutics
Which of the following is identification test for emulsion
Which of the following is identification test for emulsion
Anonymous Quiz
7%
Dilution test
6%
Cobalt chloride test
8%
Conductivity test
80%
All of the above
MCQ No. 1960 | Physical pharmaceutics
Emulsion is
Emulsion is
Anonymous Quiz
3%
Stable preparation
17%
Thermodynamically unstable preparation
20%
Biphasic system
60%
B & C
MCQ No. 1961 | Physical pharmaceutics
Emulsion containing more than two phases are called as
Emulsion containing more than two phases are called as
Anonymous Quiz
16%
Mixed emulsion
62%
Multiple emulsion
18%
Complex emulsion
5%
None of the above