What is one of the key reactions in the biosynthesis of alkaloids:
Anonymous Quiz
86%
a) Mannich reaction
5%
b) Williamson Ether
2%
c) Diels Alder reaction
6%
d) Grignard reaction
The Schiff Base can act as which of the following?
Anonymous Quiz
26%
a) electrophile
21%
b) nucleophile
6%
c) leaving group
46%
d) A and C
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Which is NOT the characteristic
feature of alkaloid?
feature of alkaloid?
Anonymous Quiz
11%
a. Complex molecular structure and nitrogen in the molecule
8%
b. Basic in nature
4%
c. Biosynthetically derived
77%
d. Only acidic in nature
❤4
Wagner reagent contains:
Anonymous Quiz
59%
a. lodine + KI water
14%
b. KI+ bismuth iodide
18%
c. lodine
8%
d. Mercuric chloride + KI in water
👍4❤1
.Murexide test is used to detect:
Anonymous Quiz
89%
a. Caffeine
4%
b. Datura
5%
c. Tannins
1%
d. Senna
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Picric acid is a chemical composition
of:
of:
Anonymous Quiz
10%
a. Van urk's reagent
7%
b. Mayer reagent
76%
c. Hager's reagent
7%
d. Wagner's reagen
👍2
What is an alkaloid?
Anonymous Quiz
67%
A )natural, basic compound with at least one nitrogen atom
4%
B)man made, acidic compound made of mostly nitrogen and carbon
3%
C) natural, acidic compound derived from animal fat
27%
D) natural, basic compound consisting mainly of carbon and hydrogen atoms
😐2
Which of the following are examples of alkaloids?
Anonymous Quiz
5%
a. Quinine
6%
b. Morphine
1%
C. Heroin
1%
d. Cocaine
86%
e.All of these are examples of alkaloids
Which of the following is the property of an alkaloid?
Anonymous Quiz
8%
A.Acidic Nitrogen Compound
82%
B.Basic Nitrogen Compound
8%
C.Neutral Nitrogen Compound
2%
D.Volatile Nitrogen Compound
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Alkaloids are obtained from?
Anonymous Quiz
20%
A.Plants
1%
B. Animal
1%
C.Microorganisms
78%
D.All of the above
Which of the following is NOT an example of Liquid Alkaloid?
Anonymous Quiz
16%
A. Sparteine
7%
B.Coniine
8%
C. Nicotine
68%
D.Atropine
👏4
Another name for Potassium mercuric iodide solution used for alkaloid chemical test?
Anonymous Quiz
13%
A/Wagners Reagent
77%
B. Mayer's Reagent
6%
C.Hager's Reagent
5%
D.Sonnenschein Reagent
😐5🕊4
Which of the following is CORRECT for Murexide test?
Anonymous Quiz
79%
A. Caffeine + Hcl + KCI3
12%
B.Caffeine + H2SO4 + KCI3
6%
C.Caffeine + HNO3 + Br2
3%
D.Caffine + H2 + N2
Ipecac and Aconite are found in?
Anonymous Quiz
26%
A.Bark
56%
B. Root
11%
C.Aerial part of plant
7%
D.Unripe capsule
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Nuxvomica and areca extracted from?
Anonymous Quiz
9%
A.Roots
9%
B.Bark
77%
C.Seed
5%
D.Flowering buds
The example of pseudoalkaloid:
Anonymous Quiz
87%
a) Caffeine
5%
b) Hygrine
4%
c) Arecoline
4%
d) Lobeline
👍3
Alkaloids found in fungi is
Anonymous Quiz
2%
A.Cinchona
2%
B.Ipecac
54%
C.Ergot
3%
D.Citrina
39%
E.Both c&d
🌚8😐8👍6❤1😁1
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
20%
A. (cocaine, belladonnine)
72%
B.hydrastine, atropine
6%
C.ergotamine , atropine
2%
D.pelletierine
the main role of alkaloids in plants is toxicity against predators and pathogens.
Anonymous Quiz
90%
True
10%
False