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

Vinyl acetylene combines with HCl to form:

Question # 2

Vinyl acetylene combines with HCI to form

Question # 3

Which gas is used for welding purposes

Question # 4

A fuel has the same knocking property as a mixture of 70 isooctane (2, 2, 4- trimethyl pentane) and 30% n-heptane by volume the octane number of the fuel is

Question # 5

Alkynes are colourless & odouless except

Question # 6

The order of dehydration of alcohol

Question # 7

An alkynes having Carbon count of 20 is

Question # 8

What is not a common use of methane

Question # 9

Raney - nickel is the alloy of Ni with

Question # 10

acetylene can be converted into-while passing through a Cu-tube at 300°C:

Question # 11

Which can be used for dehydration of alcohol

Question # 12

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

Question # 13

Kolb's method has limited synthetic applications due to

Question # 14

The carbon, carbon bond length in benzene is

Question # 15

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

Question # 16

Alkanes have functional group :

Question # 17

The compound prepared by a substitution reaction of benzene is

Question # 18

Alkyl benzenes are readily oxidized by axidfied

Question # 19

Preparation of vegetable ghee involves:

Question # 20

In CH4, all the H-C-H bond angles are

Question # 21

During nitration of benzene, the active nitrating agent is

Question # 22

Alkyne is :

Question # 23

Replacement of hydrogen by NO2group is called

Question # 24

Physical properties of alkanes increase with increase of all physical constants except

Question # 25

The sp2hybird orbitals are oriented in space at one angle

Question # 26

The nitration of benzene takes place when it is heated with a mixture of conc.HNO3and conc. H2SO4at 50°C in ratio of

Question # 27

A six membered ring containing one double bond called

Question # 28

Benzene is obtained by fractional distillation of

Question # 29

The term aromatic was derives from

Question # 30

Write the name of following compound

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ECAT Chemistry Chapter 19 Important MCQ's

Sr.# Question Answer
1 Alkyl benzenes are readily oxidized by axidfied
A. KMnO4
B. K2CO3
C. MnO4
D. H2SO4
2 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
A. Sabatier-senderens reaction
B. kolbes reaction
C. Cannizaro's reaction
D. Haloform reaction
3 Hydrocarbon which is liquid at room temperature is
A. Pentane
B. Butane
C. Propane
D. Ethane
4 The order of reactivity of halogen acids towards alkenes
A. HCl > HBr > Hl
B. HBr > HCl > HI
C. HCl > HBr
D. HI > HBr > HCl
5 Mustard gas is a
A. Gas
B. High boiling speed
C. High melting liquid
D. Steam
6 Which of the following decolorized Br2-water
A. Methane
B. Ethane
C. Ethene
D. Propane
7 Kolb's method is not useful for the production of
A. Methane
B. Ethane
C. Propane
D. Butane
8 B-B'-dichloroethyl sulphide is commonly known as
A. Mustard gas
B. Laughing gas
C. Phosgene gas
D. Bio gas
9 Most common reactions of benzene and its derivatives are
A. electrophilic addition reactions
B. electrophilic substitution reactions
C. Nucleophilic addition reactions
D. Nucleophilic subtitution reactions
10 The hydrocarbons having double bonds normally end with suffix
A. Ane
B. Ene
C. Yne
D. Oic

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