Organic Chemistry Questions and Answers – Polyhalogen Derivatives | Organic Chemistry Multiple Choice Questions and Answers

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Questions
1 What will be the product for the given reaction?
A CCl3CHO
B C6H6Cl6
C C6H12Cl6
D

C6H9Cl2

Answer: C6H6Cl6
2 The molecular formula of DDT has how many chlorine atoms?
A 5 chlorine atoms
B 2 chlorine atoms
C 3 chlorine atoms
D 4 chlorine atoms

Answer: 5 chlorine atoms
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3 What is the IUPAC name of chloroform?
A Dichloromethane
B Trichloromethane
C Chloromethane
D Carbon tetrachloride

Answer: Trichloromethane
4 Which among the following is true?
A Freon does not initiate radical chain reactions in stratosphere
B Iodoform initiates radical chain reactions in stratosphere
C Freon initiates radical chain reactions in stratosphere
D Chloroform initiates radical chain reactions in stratosphere

Answer: Freon initiates radical chain reactions in stratosphere
5 CFxCly [where x + y = 4], why these compounds are not used?
A These are fluoro carbons
B These are difficult to synthesise
C They deplete ozone layer
D These are very expensive

Answer: They deplete ozone layer
6 Which one of the following is the correct formula of methylene dichloride?
A ClCH = CHCl
B ClC ≡ CCl
C CH2Cl2
D CH2(Cl) CH2Cl

Answer:CH2Cl2
7 Central nervous system can be depressed by the use of which of the following?
A Chloroform
B Freon
C Iodoform
D DDT

Answer: Chloroform
8 How Benzene hexachloride (BHC) is used?
A Insecticides
B Fertilizers
C Anaesthetics
D Antiseptics

Answer: Insecticides
9 Depletion of Ozone is believed to increase which of the following?
A Population
B Ultraviolet rays
C Pollution
D Greenery

Answer: Ultraviolet rays
10 Which is the correct formula of Freon-12?
A CCl2F2
B CClF3
C CHCl2F
D CCl3F

Answer:CCl2F2
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