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

Raney - nickel is the alloy of Ni with

Question # 2

Preparation of ethylbenzene by the reaction of bromobenzene, ethylbromide and sodium is called

Question # 3

Alkanes containing carbon C18ownwards are

Question # 4

The treatment of benzene with isobutene in the presence of sulphuric acid give

Question # 5

The reaction in which ketone is reduced to the alkane is called

Question # 6

An organic compound, on treatment with Br2 in CC14 gives bromoderivative of an alkene. The compound will be

Question # 7

Which gas is produced by treating CaC2with water

Question # 8

Octane number is zero for

Question # 9

Kolb's method of alkanes production, is actually

Question # 10

Which is liquid among the following alkenes?

Question # 11

Hydrocarbons are organic compounds which contain elements such as

Question # 12

Benzene is obtained by fractional distillation of

Question # 13

Substituted phenyl groups are called

Question # 14

Which one of the following is (m-xylene)

Question # 15

The empirical formula of benzene is determined by

Question # 16

Benzene is obtained from benzene sulphonic acid by treating with

Question # 17

Which compound was recognized the parent member of aromatic compounds

Question # 18

Benzene does not undergo

Question # 19

Which of the following method is most appropriate for the manufacture of methane?

Question # 20

The next homologue of C10H22will be

Question # 21

the unreactivity of alkanes is based upon

Question # 22

Alkyl benzenes are readily oxidized by axidfied

Question # 23

Which is more active ?

Question # 24

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

Question # 25

Polymerization of ethane take place at pressure of 100 atm and a temperature of

Question # 26

Formula of chloroform is:

Question # 27

A salt producing hydrocarbon among these compounds is

Question # 28

A single benzene ring can have ______ ortho position maximally

Question # 29

Preparation of vegetable ghee involves

Question # 30

How many isomeric disubtituted products are obtained by the introducing of second group in the ring

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ECAT Chemistry Chapter 19 Important MCQ's

Sr.# Question Answer
1 Alkyne is :
A. CH3-CH3
B. CH4
C. CH2=CH2
D. C2H2
2 the unreactivity of alkanes is based upon
A. Inertness of sigma bond
B. Non-polarity of the bonds
C. Both A and B
D. None of above
3 Kolb's method of alkanes production, is actually
A. Hydrolysis
B. Catalysis
C. Electrolysis
D. Hydrogenation
4 When acetylene is passed through a copper tube at 300°C, it polymerizes to
A. Polyacetylene
B. polyethylene
C. Benzene
D. None of these
5 When methane reacts with Cl2in the presence of diffused light the products obtained are
A. Chloroform only
B. Carbon tetrachloride only
C. Chloromethane and dichloromethane
D. Mixture of a, b, c
6 Benzene can be obtained by heating either benzoic acid with X or phenol with Y. X and Y are respectively
A. Zinc dust and soda lime
B. Soda time and zinc dust
C. Zinc dust and sodium hydroxide
D. Soda lime and copper
7 Which of the following is an ortho-para directing group
8 Preparation of vegetable ghee involves:
A. Halogenation
B. Hydrogenation
C. Hydroxylation
D. Dehydrogenation
9 Nitroalkane are used in
A. Fuel
B. Solvents
C. Organic synthesis
D. All of them
10 Octane number can be changed by
A. Isomerisation
B. Alkylation
C. Cyclisation
D. All of these

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