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

Benzene was discovered by Michael Faraday's in

Question # 2

Which one gives acidic reactions?

Question # 3

Formula of chloroform is

Question # 4

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

Question # 5

The general formula of alkane is

Question # 6

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

Question # 7

Meta directing group decreased the ----------- of benzene ring

Question # 8

The method in which alkanes prepared by alkyle halides in the presence of palladium - charcoal is

Question # 9

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

Question # 10

The hydrocarbon used for polymerization is

Question # 11

Alkanes have functional group :

Question # 12

Alkynes are colourless & odouless except

Question # 13

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

Question # 14

Which one of the following is (m-xylene)

Question # 15

The major reaction occurring in the engines of automobiles is

Question # 16

Which of the following possesses the highest melting point?

Question # 17

The next homologue of C10H22will be

Question # 18

Substitution of halogen in the benzene ring requires catalyst

Question # 19

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

Question # 20

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

Question # 21

The addition of HBr is easiest with

Question # 22

Raney - nickel is the alloy of Ni with

Question # 23

Which gas is produced by treating CaC2with water

Question # 24

Which is more active ?

Question # 25

What is not a common use of methane

Question # 26

Benzene is obtained by fractional distillation of

Question # 27

Which class of compound is more reactive

Question # 28

A six membered ring containing one double bond called

Question # 29

During reaction of O2and alkenes, a product:

Question # 30

Alkanes are gases :

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ECAT Chemistry Chapter 19 Important MCQ's

Sr.# Question Answer
1 Ethylene combines with water in the presence of H2SO4+ HgSO4and forms
A. Ethyle chloride
B. Ethyle alcohol
C. Carboxylic acid
D. None of these
2 Sp3hybird orbitals are oriented at an angle of
A. 107.5°
B. 108.5°
C. 109.5°
D. 103.5°
3 Vinyl acetylene combines with HCl to form:
A. Polyacetylene
B. Benzene
C. Chloroprene
D. Divinyl acetylene
4 Incomplete oxidation of alkanes yields
A. CO2& carbon black
B. CO2+ heat
C. CO and carbon black
D. CO + heat
5 Vinyl acetylene combines with HCI to form
A. Poly acetylene
B. Benzene
C. Chloroprene
D. Divinylacetylene
6 To differentiate isomers we use
A. n-
B. iso-
C. neo
D. All of them
7 Preparation of vegetable ghee involves:
A. Halogenation
B. Hydrogenation
C. Hydroxylation
D. Dehydrogenation
8 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
9 The reaction in which ketone is reduced to the alkane is called
A. Kolb
B. Clemmensen
C. Cannizzaro
D. None
10 The order of reactivity of halogen acids towards alkenes
A. HCl > HBr > Hl
B. HBr > HCl > HI
C. HCl > HBr
D. HI > HBr > HCl

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