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

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

Question # 2

C18and onward hydrocarbons are normally

Question # 3

Benzene is obtained by fractional distillation of

Question # 4

"Each different compound should have a different name" was published by IUPAC system of nomenclature in

Question # 5

Alkanes are least reactive towards:

Question # 6

Replacement of hydrogen by NO2group is called

Question # 7

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

Question # 8

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

Question # 9

Hybridization of each carbon atom in benzene ring is

Question # 10

When alkyl is treated with chlorine in the presence of sunlight

Question # 11

Vinyl acetylene combines with HCl to form:

Question # 12

CnH2nis the general formula of

Question # 13

Kolb's method is not useful for the production of

Question # 14

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

Question # 15

Which class of compound is more reactive

Question # 16

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

Question # 17

β-β- dichloroethyle sulphide is commonly known as:

Question # 18

Preparation of vegetable ghee involves:

Question # 19

Alkanes have functional group :

Question # 20

Aromatic hydrocarbons are the derivatives of

Question # 21

Which of the following substances is used as an antiknock compound?

Question # 22

In which one of the following compound rings are not fused together at ortho positions

Question # 23

Which one does not declourized KMnO4

Question # 24

The correct order of reactivity of halogens with alkanes is

Question # 25

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

Question # 26

The hydrocarbon used for polymerization is

Question # 27

Marsh gas was the name given to

Question # 28

All are ortho & Para directing except

Question # 29

Preparation of vegetable ghee involves

Question # 30

Which reaction is too vigorous to control

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ECAT Chemistry Chapter 19 Important MCQ's

Sr.# Question Answer
1 Hybridization of each carbon atom in benzene ring is
A. sp hybridized
B. sp2hybridized
C. sp3
D. dsp2
2 The reaction-method that does not give an alkane is
A. Catalytic hydrogenation of alkanes
B. Wurtz reaction
C. Hydrolysis of alkyl magnesium bromide
D. Dehydrohalogenation of an alkyl halide
3 Kolb's method of alkanes production, is actually
A. Hydrolysis
B. Catalysis
C. Electrolysis
D. Hydrogenation
4 An alkynes having Carbon count of 20 is
A. gas
B. liquid
C. Solid
D. None
5 Which of the following is not an electrophitic substitution reaction of benzene
A. Nitration
B. Sulphonation
C. Fridel-Craft alkylation
D. Free radical chlorination of benzene
6 Ethylene decolorizes cold dilute solution of KMnO4. This test is known as
A. Colouration test
B. Baeyer's test
C. Silver mirror test
D. Ring test
7 Free radical mechanism of halogenation of alkanes follow step:
A. Initiation
B. Propagation
C. Termination
D. All of these
8 Benzene is obtained from benzene sulphonic acid by treating with
A. HCl
B. NaOH
C. H2O
D. NaHCO3
9 Preparation of vegetable ghee involves
A. Halogenations
B. Hydrogenation
C. Hydroxylation
D. Dehydrogenation
10 "Each different compound should have a different name" was published by IUPAC system of nomenclature in
A. 1892
B. 1830
C. 1947
D. 1979

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