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 hydrocarbons having double bonds normally end with suffix

Question # 2

When alkyl is treated with chlorine in the presence of sunlight

Question # 3

The next homologue of C10H22will be

Question # 4

The saturated hydrocarbons usually end with suffix ______

Question # 5

Hydrocarbon which is liquid at room temperature is

Question # 6

The four bonds of carbon in methane are directed towards the corners of

Question # 7

Synthetic rubber is made by polymerization of

Question # 8

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

Question # 9

Hydrogenation of alkenes/alkynes inthe presence of Ni as catalyst at 3000°C result in the formation of corresponding alkanes. This reaction is known as

Question # 10

Acetylene gives

Question # 11

Alkenes combine readily with electrophillic reagents such as halogens giving

Question # 12

The reaction-method that does not give an alkane is

Question # 13

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

Question # 14

Sulphuric acid generates nitronium ion by reacting with

Question # 15

Replacement of hydrogen by NO2group is called

Question # 16

Synthesis of rubber is made by polymerization of

Question # 17

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

Question # 18

Zn + HCI are used in

Question # 19

Octane number is zero for

Question # 20

When acetylene is passed through a copper tube at 300°C, it polymerizes to

Question # 21

CnH2nis the general formula of

Question # 22

Toluene is also called

Question # 23

Hybridization of each carbon atom in benzene ring is

Question # 24

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

Question # 25

Substituted phenyl groups are called

Question # 26

the unreactivity of alkanes is based upon

Question # 27

Introduction of a second methyl group in methylbenzene will give how many isomeric dimethyllenzenes

Question # 28

Which of the following acid can be used as a catalyst in Friedal Craft's reactions

Question # 29

Which gas is produced by treating CaC2with water

Question # 30

Which of the following is not aromatic hydrogencarbon

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ECAT Chemistry Chapter 19 Important MCQ's

Sr.# Question Answer
1 Benzene is obtained from benzene sulphonic acid by treating with
A. HCl
B. NaOH
C. H2O
D. NaHCO3
2 Which is liquid among the following alkenes?
A. Ethane
B. Propene
C. Butene
D. Pentene
3 Aromatic hydrocarbons are the derivatives of
A. Normal series of paraffins
B. Alkene
C. Benzene
D. Cyclohexane
4 The compound prepared by a substitution reaction of benzene is
A. Acetophenone
B. Glyoxal
C. Cyclohexame
D. Hexabromo cyclohexane
5 Marsh gas was the name given to
A. Methane
B. Ethane
C. Propane
D. Butane
6 Free radical mechanism of halogenation of alkanes follow step:
A. Initiation
B. Propagation
C. Termination
D. All of these
7 Acetylene when treated with 10% H2SO4in the presence of HgSO4adds one molecule of water to form
A. Aldehydes
B. Esters
C. Alcohols
D. Acids
8 Substituted phenyl groups are called
A. acyl groups
B. phenyl groups
C. Aryl groups
D. Alkyle groups
9 Mustard gas is a :
A. Gas
B. Liquid
C. Solid
D. High boiling point
10 An organic compound, on treatment with Br2 in CC14 gives bromoderivative of an alkene. The compound will be
A. CH3 - CH = Ch2
B. CH3CH = CHCH3
C. HC = CH
D. H2C = CH2

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