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

Write the name of following compound

Question # 2

Vinyl acetylene combines with HCI to form

Question # 3

Hybridization in alkanes is:

Question # 4

The empirical formula of benzene is determined by

Question # 5

Preparation of vegetable ghee involves:

Question # 6

The C-C bond angles in benzene ring are

Question # 7

Benzene does not undergo polymerization and it is also resistant to

Question # 8

The addition of HBr is easiest with

Question # 9

Which of the following is not aromatic hydrogencarbon

Question # 10

Which can be used for dehydration of alcohol

Question # 11

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

Question # 12

The three alternate single and double bonds in the benzene ring are called

Question # 13

Benzene is not prepared from

Question # 14

The addition of unsymmetrical reagent to an unsymmetrical alkene is in accordance with

Question # 15

Kolb's method has limited synthetic applications due to

Question # 16

Which reaction is too vigorous to control

Question # 17

Octane number is zero for

Question # 18

Acetylene gives

Question # 19

The saturated hydrocarbons usually end with suffix ______

Question # 20

Substitution of halogen in the benzene ring requires catalyst

Question # 21

Which one gives acidic reactions?

Question # 22

Synthetic rubber is made by polymerization of

Question # 23

The reaction-method that does not give an alkane is

Question # 24

The hydrocarbon which is used as an illuminating agent

Question # 25

Substituted phenyl groups are called

Question # 26

Kolb's method of alkanes production, is actually

Question # 27

Hydrocarbons are divided into aliphatic, alicyclic and aromatic which structure among the following show an alicyclic hydrocarbon

Question # 28

Acetylene is used in the manufacture of

Question # 29

The electrophile in aromatic sulphonation is

Question # 30

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

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Sr.# Question Answer
1 In which one of the following compound rings are not fused together at ortho positions
A. Phenanthrene
B. Naphthalene
C. Diphenyemethane
D. Anthracene
2 Which class of compound is more reactive
A. Alkane
B. Alkene
C. Alkyne
D. None
3 Sulphuric acid generates nitronium ion by reacting with
A. Nitric acid
B. Nitrogen gas
C. Nitrous acid
D. Potassium nitrate
4 Alkanes are generally not reactive towards acids, alkalis, oxidation or reuducing agents. They however undergo some reactions, which one is the reaction undergone by alkanes
A. Elemination
B. Addition
C. Free radical substitution
D. Nucleophilic substation
5 Ethylene polymerizes at 100 atm pressure and 400°C to give
A. Polybenzene
B. Polyalcohol
C. Polypropylene
D. Polyethylene
6 Which gas is used for welding purposes
A. Butane
B. Nitrogen
C. Methane
D. Acetylene
7 Preparation of vegetable ghee involves:
A. Halogenation
B. Hydrogenation
C. Hydroxylation
D. Dehydrogenation
8 The order of reactivity of halogens in aliphatic substitution reactions is
A. Br2 > C12 > F2
B. C12 > Br2 > F2
C. C12 C12 > Br2
D. F2 > Br2 > C12
9 Substituted phenyl groups are called
A. acyl groups
B. phenyl groups
C. Aryl groups
D. Alkyle groups
10 Which of the following species participate in sulphonation of benzene ring?
A. H2SO4
B. HSO4
C. SO3
D. SO-2

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