ECAT Pre Engineering Chemistry Chapter 19 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons

Try The MCQ's Test For ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons

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ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons

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Question # 1

Which is liquid among the following alkenes?

Question # 2

Write the name of following compound

Question # 3

Ethylene polymerizes at 100 atm pressure and 400°C to give

Question # 4

A fuel has the same knocking property as a mixture of 70 isooctane (2, 2, 4- trimethyl pentane) and 30% n-heptane by volume the octane number of the fuel is

Question # 5

Which of the following reaction is characteristic of benzene

Question # 6

Write the name of following alkene CH2= CH - CH = CH2

Question # 7

Vinyl acetylene combines with HCl to form:

Question # 8

During the preparation of alkanes the hydrogenation of alkenes or alkynes the catalyst may be

Question # 9

Synthesis of rubber is made by polymerization of

Question # 10

The method used only for the production of symmetrical alkanes

Question # 11

Which is more active ?

Question # 12

The temp. used for the hydrogenation of alkenes using Ni is

Question # 13

Th IUPAC name of the compound having formula (CH3) 3 C - CH = CH2 is

Question # 14

How many molecules of chlorine adds in benzene in the presence of sunlight

Question # 15

Alkyl benzenes are readily oxidized by axidfied

Question # 16

All C - H bond lengths of benzene ring is

Question # 17

Which compound was recognized the parent member of aromatic compounds

Question # 18

Alkyne is :

Question # 19

Alkenes combine readily with electrophillic reagents such as halogens giving

Question # 20

Which one of the following gases is used for artificial ripening of fruits

Question # 21

Ethylene decolorizes cold dilute solution of KMnO4. This test is known as

Question # 22

Which reaction sequence would be best to prepare 3-chloro-aniline from benzene?

Question # 23

The process in which orbitals of different energies and shapes mix with each other to give equivalent hybrid orbitals is called

Question # 24

Mustard gas is a :

Question # 25

The empirical formula of benzene is determined by

Question # 26

When sodium benzoate is treated with soda lime (NaOH) benzene is formed. What is the other product

Question # 27

Acetylene when treated with 10% H2SO4in the presence of HgSO4adds one molecule of water to form

Question # 28

Ethylene can be prepared in the laboratory by heating together ethyl alcohol and

Question # 29

Kolb's method has limited synthetic applications due to

Question # 30

Benzene was discovered by Michael Faraday's in

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ECAT Chemistry Chapter 19 Important MCQ's

Sr.# Question Answer
1 All C - H bond lengths of benzene ring is
A. 1.07A°
B. 1.09A°
C. 1.08A°
D. None
2 Hydrocarbons are organic compounds which contain elements such as
A. Hydrogen
B. Carbon
C. Hydrogen and carbon
D. Halogens
3 Kolb's method has limited synthetic applications due to
A. Expensive catalysis
B. Slow reaction
C. Number of side products produced
D. Salts used are very expensive
4 acetylene can be converted into-while passing through a Cu-tube at 300°C:
A. Glyoxal
B. Vinyl acetylene
C. Vinyl alcohol
D. Benzene
5 Marsh gas was the name given to
A. Methane
B. Ethane
C. Propane
D. Butane
6 Free radical mechanism of halogenation of alkanes follow step:
A. Initiation
B. Propagation
C. Termination
D. All of these
7 Catalytic oxidation of alkanes is used for the preparation of
A. Adehydes
B. Ketones
C. Fatty acid
D. Carbonyylic acids
8 What is not a common use of methane
A. As a fuel
B. For the preparation of haloaklanes
C. For the preparation of methyl alcohol
D. For the preparation of sulphuric acid
9 The treatment of benzene with isobutene in the presence of sulphuric acid give
A. isobutyl benzene
B. tert-Butyl benzene
C. n- Butyl benzene
D. no reaction
10 The next homologue of C10H22will be
A. C9H20
B. C12H26
C. C11H24
D. C13H28

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