1- The simplest member
of organic compounds is:
a)
Methanol
b) Methane
c)
Formic acid
d)
Formaldehyde
2- Calcium carbide on
reaction with water gives:
a)
Methane
b)
Ethane
c)
Propane
d) Acetylene
3- Chlorination of
alkanes is an example of:
a)
Radical
b)
Elimination
c)
Free radical addition
d) Free radical substitution
4- Ethylbenzene can be
prepared by the reaction of benzene and ethyl chloride in the presence of Lewis
acid named:
a)
Fe
b) AICI3 (anhydrous)
c)
H2-SO4
d)
Zn
5- It is not true for
Benzene:
a)
Heat of hydrogenation of benzene is less than
the theoretical yield
b) There are three C-C single and three
C-C double bonds
c)
It forms only one type of monosubstituted
product
d)
The C-C-C bond angle is 120°
6- The overlapping of
orbitals in benzene are:
a)
sp-sp & sp2-s
b)
s-s & sp2-s
c) sp2-sp2 & sp2-s
d)
sp3-sp3 & sp2-s
7- The IUPAC name for
the given condensed formula is (CH3)2-C=CHC(C2H5)=CH2
a)
4-methyl-1,3-pentene
b) 4-methyl-2-ethyl-1,3-pentadiene
c)
3-ethyl-2-methyl-2,4-pentadiene
8- The product obtained
on heating 2-Bromopentane with potassium hydroxide in ethanol is:
a)
1-pentene
b)
2-cis-pentene
c) Trans-2-pentene
d)
2-hydroxy pentane
9- Hydrocarbons are
organic compounds with elements:
a)
Hydrogen
b)
Oxygen
c)
Carbon
d) Both Hydrogen and carbon
10- Find the odd one out:
a) Benzene
b)
Alkanes
c)
Alkynes
d)
Alkenes
11- Dehalogenation of
tetrahalide will give:
a)
Ethene
b) Ethyne
c)
Dihalide
d)
Vic-dihalide
12- It is the most reactive
among the given compounds:
a)
Ethane
b) Ethylene
c)
Acetylene
d)
Propane
13- The order of ease of
halogenation of methane and ethane is:
a)
Cl2> F2>Br2>l2
b) F2>Cl2>Br2>I2
c)
F2>Br2>Cl2>I2
d)
F2>Cl2>I2>Br2
14- It has one acidic
hydrogen:
a)
Acetylene
b)
Ethylene
c) 1-propyne
d)
2-butyne
15- Alkene is produced
from the dehalogenation of:
a)
Dihaloalkane
b)
Tri-haloalkane
c) Vic-dihalide
d)
Gem-dihalide
16- Catalytic
hydrogenation of alkenes exhibits:
a)
Condensation reaction
b)
Substitution reaction
c)
Elimination reaction
d) Addition reaction
17- Alkanes are insoluble
in:
a)
Ether
b)
Benzene
c) Water
d)
Carbon tetrachloride
18- Benzene will undergo:
a)
Addition reaction
b)
Elimination reaction
c) Substitution reaction
d)
Condensation reaction
19- How many hydrogen
atoms are there in cycloalkane if n=5?
a)
8
b) 10
c)
12
d)
16
20- Which of the
following hydrocarbons will produce less carbon dioxide when completely
combusted?
a) Natural gas
b)
Gasoline
c)
Kerosene
d)
Diesel fuel
21- Conversion of
2-butyne to cis-2-butene is done through?
a) Partial hydrogenation
b)
Hydro halogenation
c)
Substitution
d)
Nitrification
22- Which is not a step
of radical halogenation of alkanes?
a)
Bond cleavage forms two radicals
b)
One radical reacts and one radical is formed
c) One radical reacts to form a sigma
bond
d)
Two radicals react to form a sigma bond
23- Catalytic
hydrogenation of alkenes exhibits?
a)
Condensation reaction
b)
Substitution reaction
c)
Elimination reaction
d) Addition reaction
24- When ethene is
reacted with water along with a catalyst, it forms ethanol. What do you call
this reaction?
a)
Halogenation
b)
Hydrohalogenation
c) Hydration
d)
Dehydration
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