Chemistry in Everyday Life MCQ Questions & Answers in Organic Chemistry | Chemistry
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121.
Amoxycillin is semi-synthetic modification of
A
penicillin
B
streptomycin
C
tetracyclin
D
chloroampheniol
Answer :
penicillin
Amoxycillin is semisynthetic modification of penicillin
122.
Which of the following is not used as a food preservative?
A
Sodium salt of benzoic acid
B
Sodium salt of sorbic acid
C
Sodium salt of propanoic acid
D
All of these
Answer :
All of these
Sodium benzoate is the most important food preservative. Sodium salts of few more acids which can be used as preservatives are sorbic acid and propanoic acid.
123.
Mixture of chloroxylenol and terpineol acts as
A
analgesic
B
antiseptic
C
antipyretic
D
antibiotic
Answer :
antiseptic
(A) The medicines which are used to reduce pain are known as analgesics. For example paracetamol, ibuprofen, morphine, etc.
(B) The chemicals which either prevent the growth of microorganisms or kill them but are not harmful to the living tissues are known as antiseptics. e.g. savlon, dettol. Dettol is one of the most commonly used antiseptics. It is a mixture of chloroxylenol and $$\alpha $$ - terpineol.
(C) The chemical substances which are used to bring down body temperature during fever are called antipyretics, e.g. aspirin, novalgin, etc
(D) The chemicals which are obtained from microorganisms such as bacteria, fungi, etc., or by synthetic methods and used to inhibit the growth or even kill the microorganisms are called antibiotics, eg. penicillin, chloramphenicol, etc.
124.
Which one of the following is employed as antihistamine ?
A
Chloramphenicol
B
Diphenylhydramine
C
Norothindrone
D
Omeprazole
Answer :
Diphenylhydramine
Diphenylhydramine also known as benadryl is an antihistamine.
125.
Match the drugs in column I with the examples given in column II and mark the appropriate choice.
Column I
Column II
a.
Antibiotic
1.
Codeine
b.
Antiseptic
2.
Phenelzine
c.
Analgesic
3.
Chloramphenicol
d.
Tranquilizer
4.
Chloroxylenol
A
a - 1, b - 3, c - 2, d - 4
B
a - 4, b - 2, c - 3, d - 1
C
a - 2, b - 4, c - 1, d - 3
D
a - 3, b - 4, c - 1, d - 2
Answer :
a - 3, b - 4, c - 1, d - 2
No explanation is given for this question. Let's discuss the answer together.
126.
Chloroamphenicol is an :
A
antifertility drug
B
antihistaminic
C
antiseptic and disinfectant
D
antibiotic-broad spectrum
Answer :
antibiotic-broad spectrum
Chloroamphenicol is a broad spectrum antibiotic.
127.
The chemical substances used to bring down body temperature in high fever are known as
A
analgesics
B
antipyretics
C
antihistamines
D
tranquilizers
Answer :
antipyretics
Antipyretics lower the body temperature in fever.
128.
Which of the following is a criteria to classify drugs?
A
Chemical structure
B
Molecular targets
C
Drug action
D
All of these
Answer :
All of these
No explanation is given for this question. Let's discuss the answer together.
129.
Which one is a broad spectrum antibiotic?
A
Chloramphenicol
B
Plasmoquin
C
Xylocaine
D
Antiseptic
Answer :
Chloramphenicol
Chloramphenicol is a broad spectrum antibiotic and is rapidly absorbed from the gastro-intestinal tract and hence can be given orally in case of typhoid, dysentery, acute fever, meningitis and pneumonia.