12) In TLC which of the following is not true?
Anonymous Quiz
17%
a) The mechanism of separation is adsorption.
7%
b) The sample is isolated caffeine.
36%
c) We doesn't use dragendorff reagent for detection.
40%
d) The color of spot under uv light at 254nm is violet.
1) ........ give indole alkaloids its basic properties
Anonymous Quiz
29%
a) Benzene ring
71%
b) Nitrogen atom in pyrrole ring
2) Quinazoline alkaloids:
Anonymous Quiz
29%
a) Consist of pyridine ring fused to an indole.
10%
b) Consist of benzene fused to pyrrole.
61%
c) Consist of benzene fused to pyrimidine.
4) The traditional use of harmal is:
Anonymous Quiz
15%
a) Antibacterial.
61%
b) Incense.
18%
c) MAO inhibitor.
6%
d) Antiviral.
5) ........ have uterine stimulatory effect.
Anonymous Quiz
79%
a) Quinazoline alkaloids
21%
b) β-Carboline alkaloids
6) ........ use for defatting of harmala seeds.
Anonymous Quiz
4%
a) HCl
0%
b) Ammonium hydroxide
11%
c) Ethanol
85%
d) Petroleum ether
9) Method of extraction of harmala alkaloids is:
Anonymous Quiz
11%
a) Digestion.
7%
b) Decoction.
82%
c) Reflux.
10) Qualitative analysis of Peganum harmala is done by:
Anonymous Quiz
14%
a) TLC.
7%
b) Chemical tests.
18%
c) Weighing.
61%
d) Both a) and b).
1) Which of the following is not semisolid dosage forms?
Anonymous Quiz
10%
a) Gels.
80%
b) Powders.
2%
b) Creams.
8%
c) Ointments.
3) ........ can be used as protectants, emollients, or lubricants.
Anonymous Quiz
79%
a) Non medicated ointments
21%
b) Medicated ointments
4) Which of the following is not true about ointments with oleaginous bases?
Anonymous Quiz
3%
a) They have an emollient effect.
10%
b) Protect against the escape of moisture.
78%
c) They are easy to wash.
10%
d) Example vaseline.
6) Hydrophilic petrolatum is an example of:
Anonymous Quiz
49%
a) Ointment with absorption base.
27%
b) Ointment with water removable base.
23%
c) Ointment with oleaginous base.