DDT NEET Questions

Organic Chemistry - Organic Compounds Containing Halogens

DDT MCQ Questions


13.
Which of the following is the correct structural representation of DDT?
A.
(p-Cl-C6H4)2CH-CCl3
B.
(p-Cl-C6H4)2C(Cl)-CHCl2
C.
(o-Cl-C6H4)2CH-CCl3
D.
(C6H5)2CCl-CCl3
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ANSWER :
A. (p-Cl-C6H4)2CH-CCl3
14.
DDT contains how many aromatic (benzene) rings?
A.
One
B.
Three
C.
Two
D.
Four
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ANSWER :
C. Two
15.
DDT is mainly soluble in:
A.
Strong acids
B.
Liquid ammonia
C.
Water
D.
Fatty tissues / organic solvents
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ANSWER :
D. Fatty tissues / organic solvents
16.
Which property of DDT contributes most to its bioaccumulation in animals?
A.
Fat solubility (lipophilicity)
B.
Volatility at low temperature
C.
Reactivity with metals
D.
Water solubility
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ANSWER :
A. Fat solubility (lipophilicity)
17.
DDT persists in the environment because:
A.
It is highly water-soluble
B.
It is chemically stable and resistant to biodegradation
C.
It evaporates rapidly
D.
It is rapidly broken down by sunlight
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ANSWER :
B. It is chemically stable and resistant to biodegradation
18.
DDT is rapidly metabolised by which of the following?
A.
It is rapidly excreted in urine
B.
It is rapidly metabolised by the liver
C.
It is NOT rapidly metabolised; it is stored in fatty tissues
D.
It is rapidly metabolised by the kidneys
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ANSWER :
C. It is NOT rapidly metabolised; it is stored in fatty tissues