Which of the folloiwng is true about steam distillation:
Anonymous Quiz
10%
It is used in rare cases, for solid alkaloids, e.g.caffeine, nicotine & sparteine.
78%
It is used in rare cases, for liquid alkaloids, e.g.coniine, nicotine & sparteine.
5%
It is used in rare cases, for liquid alkaloids, e.g.coniine, atropine & sparteine.
7%
non of the following
a rich source of alkaloids,
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2%
Animals
93%
Plants
3%
Fungi
1%
Parasites
1%
None of them
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a rich source of alkaloids,..
And some of them found in
And some of them found in
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13%
Bacteria , fungi ,plants
4%
Plants , parasites , insects
57%
Plants, animals ,fungi and bacteria
26%
All of them
Most alkaloids possess basic properties, due to the presence of
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3%
Amino oxygen
87%
Amino nitrogen
1%
Amino chloride
9%
All of them
In spite of the difficulties attending a precise definition, the term is an extremely useful one, commonly applied to
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87%
basic nitrogenous compounds of plant origin which are physiologically active.
4%
Not basic nitrogenous compounds of plant origin which are physiologically active.
5%
basic nitrogenous compounds of plant origin which are not physiologically active.
5%
basic nitrogenous compounds of plant origin which are physiologically less active.
Distribution of alkaloids is angiosperms
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51%
Papaveraceae
1%
Myrtaceae
6%
Asteraceae
42%
All above
Distribution of alkaloids are the
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17%
angiosperms
12%
the gymnosperms only rarely contain them (Taxaceae).
2%
The monocotyledons do not generally produce alkaloids
69%
All above
Protoalkaloids are also called as:
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74%
a) Amino alkaloid
2%
b) Pseudo alkaloid
6%
c) True alkaloid
18%
d) Extra alkaloid
Who first coined the name “Alkaloids"?
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9%
a) S.W. Pelletier
83%
b/ Fredrich
4%
c) Karl Fredrich Wilhelm Meissner
3%
d) Joseph Caventou
Wagner reagent contains:
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69%
a. lodine + KI water
15%
b. KI+ bismuth iodide
9%
c. lodine
7%
d. Mercuric chloride + KI in water
Picric acid is a chemical composition
of:
of:
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13%
a. Van urk's reagent
7%
b. Mayer reagent
75%
c. Hager's reagent
5%
d. Wagner's reagen
Which of the following is the property of an alkaloid?
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5%
A.Acidic Nitrogen Compound
87%
B.Basic Nitrogen Compound
5%
C.Neutral Nitrogen Compound
2%
D.Volatile Nitrogen Compound
Which of the following is NOT an example of Liquid Alkaloid?
Anonymous Quiz
8%
A. Sparteine
3%
B.Coniine
6%
C. Nicotine
82%
D.Atropine
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Another name for Potassium mercuric iodide solution used for alkaloid chemical test?
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6%
A/Wagners Reagent
84%
B. Mayer's Reagent
5%
C.Hager's Reagent
4%
D.Sonnenschein Reagent
Which of the following is CORRECT for Murexide test?
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73%
A. Caffeine + Hcl + KCI3
13%
B.Caffeine + H2SO4 + KCI3
9%
C.Caffeine + HNO3 + Br2
4%
D.Caffine + H2 + N2
Nuxvomica and areca extracted from?
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11%
A.Roots
2%
B.Bark
84%
C.Seed
3%
D.Flowering buds
Alkaloids found in fungi is
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1%
A.Cinchona
0%
B.Ipecac
55%
C.Ergot
5%
D.Citrina
39%
E.Both c&d
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The name of the alkaloids are obtained
from the generic name of the plant yielding them such as
from the generic name of the plant yielding them such as
Anonymous Quiz
18%
A. (cocaine, belladonnine)
73%
B.hydrastine, atropine
6%
C.ergotamine , atropine
3%
D.pelletierine
Some alkaloids can be extremely harmful to mammals, which is the case of the
intoxication.
steroidal alkaloid cyclopamine in lambs, identified as the compound
intoxication.
steroidal alkaloid cyclopamine in lambs, identified as the compound
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67%
A.in Veratrum californicum (Liliaceae) responsible for teratogen effects
20%
B.in Veratrum californicum (Leguminsae) responsible for teratogen effects
4%
C.in Veratrum californicum (Rubiaceae) responsible for teratogen effects
9%
None of them
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