MULTIPLE CHOICE QUESTIONS WITH ANSWERS ON
CHEMISTRY OF NATURAL PRODUCT
1. Ergot belongs to which family?
(a) Clavicipitaceae(b) Apiaceae
(c) Apocynaceae
(d) Boraginaceae
2. Morphine is obtained from
(a)Poppy plant
(b) Penicillium
(c)Rauwolfia
(d)Both 1 and 3
3. Type of ring system found in Atropine?
(a) Benzene
(b) Napthalene
(c) Imidazole
(d) None of the above
4. Morphine is used for
(a) Reducing the acute pain
(b) Reducing the chronic pain
(c) Treatment of shortness of breath
(d) All of the above
5. What can be the correct IUPAC nomenclature of Atropine?
(a)
(RS)-1-(1-methylethylamino)-3-(1-naphthyloxy)propan-2-ol.
(b) [8-methyl-8-(1-methylethyl)-
8-azoniabicyclo[3.2.1] oct-3-yl] 3-hydroxy-2-phenyl-propanoate
(c)
(RS)-(8-Methyl-8-azabicyclo[3.2.1]oct-3-yl) 3-hydroxy-2-phenylpropanoate
(d)
2-[(Aminocarbonyl)oxy]-N,N,N-trimethylethanaminium chloride.
6. What is the botanical name of opium?
(a) Brassica juncea
(b) Allium cepa
(c) Papaver semiferum
(d) Senecia cinerana
7. Which are the Chemical constituents of ergot work as colouring matter?
(a) Putriscine
(b) Cadaverine
(c) Agmatine
(d) All of the above
8. Ephedra contain………. percentage of alkaloid in total ephedrine
(a) 0.6-0.7 5%
(b) 0.2-5.0 %
(c) 0.5-2.0 %
(d) 3.0-6.0 %
9. Ergot used to treat
(a) Migraine
(b) Psychotomimetic
(c) Cancer
(d) Both a and b
10. Rauwolfia show the properties of…
(a) Sedative
(b) Stimulating the central of peripheral
nervous system
(c) Increase the uterine contraction
(d) All of the above
11. The molecular formoula of morphine is
a) C17H19NO3
b) C17H18NO3
c) C17H18NH3
d) C17H18NH4
12. Ephedrine show activity of
(a) Hepatoprotactive
(b) Anti- obesity
(c) Anti-viral
(d) All of the above
13. Chemical constituent of ephedra are
(a) Alkaloids
(b) Pseudoephedrine
(c) Feruloylhistamin
(d) All of the above
14. Digitoxin on hydrolysis gives…..
(a) Digitoxigenin and 3
molecules of digitoxose
(b) Digoxin and 1 molecules of digitoxose
(c) only digitoxigenin
(d) None of the above
15. The pharmacological activity of digitoxin are..
(a) It enhances the force of
contraction
(b) Heart failure
(c) Increasing cardiac output.
(d) All of the above
16. Sennosides are belogs to….
(a) Anthraquinone glycosides
(b) Saponin glycosides
(c) Cardiac glycosides
(d) None of the above
17. The molecular formoula of sennoside is..
(a) C42H33O20
(b) C23H40O20
(c) C42H33NH2
(a) In very large dose it
acts as cathartics
(b) It acts on colon and stimulate its muscle
(c) Only b is right
(d) Both a and b is the right
19. Mid-IR region mainly consists of
(A)
4000 – 100 cm -1
(B)
14000 – 4000 cm -1
(C)
4000 – 400 cm-1
(D) 400 – 100 cm -1
20. Select the wavelength
range corresponding to UV-visible region. B
(A)
400-800 nm
(B)
200-800 nm
(C)
25 μm-2.5 μm
(D) 2.5 μm – 1mm
21. Mass spectrometers are used to determine which of the following?
a) Composition in sample
b) Concentration of elements in sample
c) Relative mass of atoms
d) Properties of sample
22. In mass spectrometer, the
sample that has to be analysed is bombarded with which of the following?
a) Protons
b) Electrons
c) Neutrons
d) Alpha particles
23. Enantiomers also known as….
(a) Optical isomerism
(b) Non optical isomerism
(c) isomerism
(d) None of the above
24. Mass spectrometer separates
ions on the basis of which of the following?
a) Mass
b) Charge
c) Molecular weight
d) Mass to charge ratio
25. NMR is the study of absorption of __________ by nuclei in a magnetic field?
a) Radioactive
radiation
b) IR radiation
c) Radio frequency radiation
d) Microwaves
26. Enantiomers also known as….
a) Optical isomerism
b) Non optical isomerism
c) isomerism
d) None of the above
27. Structural isomerism are also called as
a) Stereoisomerism
b) Spatial isomerism
c) Constitutional isomerism
d) None of the above
28. Stereoisomerism is also known as….B
a) Stereoisomerism
b) Spatial isomerism
c) Constitutional isomerism
d) None of the above
29. Optical isomerism arise from the presence of….. A
a) An asymmetric carbon atom
b) A centre of symmetry
c) A line of symkmetry
d) None of the above
30. Compound which have different arrangements in space while having same atoms bonded to each other are said to have…. D
a) Position isomerism
b) Functional group isomerism
c) Chain isomerism
d) Stereoisomerism
31. Which structure is that of isoprene? A
a) H2C=C(CH3)-CH=CH2
b) H2C=CH-CH2-CH=CH2
c) CH3-CH2-CH2-CH=CH2
d) CH3-CH(CH3)-CH=CH2
32. What is the "isoprene rule"? B
a) Terpenes contain "tail-to-tail" connected isoprenes.
b) Terpenes contain "head-to-tail" connected isoprenes.
c) Terpenes contain "head-to-head" connected isoprenes.
d) Terpenes contain 5n atoms.
33. How many isoprene units are there in a monoterpene? 2
a) 1
b) 2
c) 3
d) 4
34. Monoterpenoids consists of
B
a) 5 Carbon
b) 10 Carbon
c) 15 Carbon
d) 20 Carbon
35. Number of isoprene units in carotenoids D
a) 5
b) 6
c) 7
d) 8
36. alpha carotene is an example of D
a) Monoterpenoid
b)Diterpenoid
c)Triterpenoid
d)Tetraterpenoid
37. Which can be the best example of Monoterpenoids C
a) Chlorophyll
b) Rubber
c) Menthol
d) Gibberellins
38 The interaction of Tropine and tropic acid produces?
a) Atropin
b) Carbachol
c) Procyclidine
d) Doxacurium
39. The pharmacological activity of diosgenin.....
a) It produces a synergistic effect on body
b) Rheumatic arthritis
c) Only b is right
d) Both a and b is right
40.
The sources from which humans can fulfill the deficiency of vitamin A are
A) yellow/orange
fruits
B) leafy
vegetables
C) fish
and liver
D) all
of above
41. Therapeutic effect of penicillin are.....
a) Pneumococcal Infections.
A) Pneumococcal Meningitis B) Pneumococcal Pneumonia D
b) Streptococcal
Pneumonia, Arthritis, Meningitis, and Endocarditis.
c) Only b is right
d) Both a and b is right
42. Which of the following species
is used for producing streptomycin? B
(a) S.
ramosus
(b) S.
griseus
(c) S.
aureofaciens
(d) S.
griseoflavus
43. Which of the following species is used for producing tetracycline? C
(a) S.
venezuelae
(b) S.
griseus
(c) S.
aureofaciens
(d) S.
griseoflavus
44. Which statement
about penicillins is TRUE A
A. Penicillins on high doses cause convulsions.
B. Benzylpenicillin is not effective for infections
due to normal strains of Neisseria meningitidis
C. Phenoxymethylpenicillin is not resistant to
gastric acid.
D. Penicillins are not effective against normal
strains of gram positive bacteria.
45. The
penicillins act by : B
A. inhibition of protien synthesis
B. interfering with bacterial cell wall synthesis.
C. inhibition of neuclic acid synthesis
D. phagocytic action.
46. what of the following is example of flavonones A
(a) Hesperetin
(b) Taxifolin
(c) Luteolin
(d) Quercetin
47. Which
of the following is right about flavonoids
(a) Daily use of flavoids reduce the risk
of cancer
(b) They are good antioxidant
(c) They have anti-inflammatory activity
(d) All of the above
48.
Biological activity of lignans are
(a) Antiviral
(b) Anticancer
(c) Hepatoprotective
(d) All of the above
49. What
is the family of vinka
(a) Umbelliferae
(b) Apocynaceae
(c) Apiaceae
(d) Ephedriaceae
50. The
pharmacological effect of sarasapogenin…..
(a) Anti tumour
(b) Anti depressants
(c) Both of the above
(d) None of the above
Answers...
|
Q.NO |
Answer |
Q.NO |
Answer |
Q.NO |
Answer |
|
01 |
A |
02 |
A |
03 |
A |
|
04 |
D |
05 |
C |
06 |
C |
|
07 |
D |
08 |
C |
09 |
D |
|
10 |
D |
11 |
A |
12 |
D |
|
13 |
D |
14 |
A |
15 |
D |
|
16 |
A |
17 |
A |
18 |
D |
|
19 |
C |
20 |
B |
21 |
C |
|
22 |
B |
23 |
A |
24 |
D |
|
25 |
C |
26 |
A |
27 |
C |
|
28 |
B |
29 |
A |
30 |
D |
|
31 |
A |
32 |
B |
33 |
B |
|
34 |
B |
35 |
D |
36 |
D |
|
37 |
C |
38 |
A |
39 |
D |
|
40 |
D |
41 |
D |
42 |
B |
|
43 |
C |
44 |
A |
45 |
B |
|
46 |
A |
47 |
D |
48 |
D |
|
49 |
B |
50 |
C |
|
|
0 Comments
Please do not enter any spam link in the comment box.