Engineering Entrance Sample Papers

Halogen Containing Compounds Questions

Compounds containing Halogens

Practice Questions on Organic Compounds containing Halogens:

Organic Compounds Containing Halogens

Question 1
Ethylene reacts with bromine to form

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A
Chloroethane
B
Ethylene dibromide
C
1-bromo propane
D
Cyclohexane
Question 2
The reactivity of ethyl chloride is
A
Less than that of chlorobenzene
B
More or less equal to that of chlorobenzene
C
More or less equal to that of benzyl chloride
D
More than that of benzyl chloride
Question 3
A Grignard's reagent may be made by reacting magnesium with
A
Ethyl iodide
B
Methyl amine
C
Ethyl alcohol
D
Diethyl ether
Question 4
DDT is
A
A solution
B
A solid
C
A liquid
D
A gas
Question 5
Among the following one with the highest percentage of chlorine is?
A
Pyrene
B
PVC
C
Gammexene
D
Chloral
Question 6
Preparation of alkyl halides in laboratory is least preferred by
A
Direct halogenation of alkanes
B
Addition of hydrogen halides to alkenes
C
Treatment of alcohols
D
Halide exchange
Question 7
Ethylene difluoride on hydrolysis gives
A
Difluoroethanol
B
Fluoroethanol
C
Freon
D
Glycol
Question 8
Chloropicrin is used as

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A
Solvent
B
Perfume
C
Tear gas
D
Anaesthetic
Question 9
An important insecticide is obtained by the action of chloral on chlorobenzene. It is
A
DDT
B
Lindane
C
Gammexene
D
BHC
Question 10
The reaction between chlorobenzene and chloral in the presence of concentrated sulphuric acid produces
A
Gammexane
B
Chloropicrin
C
Benzene hexachloride
D
p,p-dichloro diphenyl trichloro ethane
Question 11
When ethyl bromide reacts with sodium acetylide the main product is?
A
2-butene
B
1-butene
C
1-butane
D
1-butyne
Question 12
What is the main product of the reaction between 2-methyl propene with HBr
A
1-bromo-2 methyl propane
B
2-bromo butane
C
2-bromo-2 methyl propane
D
1-bromo butane
Question 13
Benzene hexachloride is prepared from benzene and chlorine in sunlight by

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A
Rearrangement
B
Elimination reaction
C
Substitution reaction
D
Addition reaction
Question 14
The C – Cl bond in chlorobenzene as compared with C – Cl bond in methyl chloride is
A
Shorter and stronger
B
Longer and weaker
C
Shorter and weaker
D
Longer and stronger
Question 15
By heating a mixture of CHCl3 with silver powder, the compound formed is
A
Methanol
B
Silver acetate
C
None of these
D
Acetylene
Question 16
Reaction of alkyl halides with aromatic compounds in presence of anhydrous AlCl3 is known as
A
Hofmann degradation
B
Beckmann rearrangement
C
Friedal-Craft reaction
D
Kolbe’s synthesis
Question 17
One of the following that cannot undergo dehydro-halogenation is

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A
Iso-propyl bromide
B
None of these
C
Ethyl bromide
D
Ethanol
Question 18
The total number of stereoisomeric forms of C6H6Cl6 known is
A
None of these
B
6
C
8
D
7
Question 19
When chloroform is exposed to air and sunlight, it gives:
A
Lewsite
B
Mustard gas
C
Carbonyl chloride
D
Carbon tetrachloride
Question 20
Which of the following compounds does not undergo nucleophilic substitution reactions?
A
Benzyl chloride
B
Isopropyl chloride
C
Vinyl chloride
D
Ethyl bromide
There are 20 questions to complete.
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