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

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

Question # 2

Hydrocarbons are organic compounds which contain elements such as

Question # 3

C18and onward hydrocarbons are normally

Question # 4

The hydrocarbons having double bonds normally end with suffix

Question # 5

Synthesis of rubber is made by polymerization of

Question # 6

In CH4, all the H-C-H bond angles are

Question # 7

The presence of a double bond in a compound in the sign of:

Question # 8

Synthetic rubber is made by polymerization of

Question # 9

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

Question # 10

Mustard gas is a :

Question # 11

An alkane is produced when an alkyle halide reacts with zinc in the presence of

Question # 12

CnH2nis the general formula of

Question # 13

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

Question # 14

The carbon, carbon bond length in benzene is

Question # 15

Hybridization in alkanes is:

Question # 16

During the preparation of alkynes the active metals that react with tetra halo-alkanes are

Question # 17

When methane reacts with Cl2in the presence of diffused light the products obtained are?

Question # 18

The simplest and the parent members of aromatic hydrocarbon is

Question # 19

Which is more active ?

Question # 20

The electrophile in aromatic sulphonation is

Question # 21

Octane number is zero for

Question # 22

Benzene is obtained by fractional distillation of

Question # 23

Kolb's method is not useful for the production of

Question # 24

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

Question # 25

Acetylene gives

Question # 26

Hydrocarbons contain :

Question # 27

Ethylene combines with water in the presence of H2SO4+ HgSO4and forms

Question # 28

The order of reactivity of halogens in aliphatic substitution reactions is

Question # 29

Which reaction is too vigorous to control

Question # 30

When alkyl is treated with chlorine in the presence of sunlight

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ECAT Class Chemistry Chapter 19 Important MCQ's

Sr.# Question Answer
1 When n-hexane is heated in the presence of Pt at 500°C, it cyclists to give
A. Benzene
B. Cyclohexene
C. Benzene
D. Toluene
2 Alkanes are gases :
A. C1-C4
B. C5-C10
C. C11-C15
D. C10-C20
3 "Each different compound should have a different name" was published by IUPAC system of nomenclature in
A. 1892
B. 1830
C. 1947
D. 1979
4 The next homologue of C10H22will be
A. C9H20
B. C12H26
C. C11H24
D. C13H28
5 Substitution of halogen in the benzene ring requires catalyst
A. AlCl3
B. FeCl3
C. SiO2
D. Organo - nickel
6 The hydrocarbon which is used as an illuminating agent
A. Methane
B. Methene
C. Methyne
D. B & C
7 Ethylene can be prepared in the laboratory by heating together ethyl alcohol and
A. HCI
B. Phenol
C. HF
D. H2SO4
8 Hybridization of each carbon atom in benzene ring is
A. sp hybridized
B. sp2hybridized
C. sp3
D. dsp2
9 During the preparation of alkanes the hydrogenation of alkenes or alkynes the catalyst may be
A. H2SO4
B. Ni
C. Fe2O3
D. Al2O3
10 Which one of the following gases is used for artificial ripening of fruits ?
A. Ethane
B. Ethyne
C. Methane
D. Propane

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