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

Aromatic hydrocarbons are the derivatives of

Question # 2

Benzene is prepared from n-hexane in the presence of catalyst

Question # 3

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 # 4

Which compound was recognized the parent member of aromatic compounds

Question # 5

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

Question # 6

The reaction in which ketone is reduced to the alkane is called

Question # 7

Formula of chloroform is

Question # 8

The sp2hybird orbitals are oriented in space at one angle

Question # 9

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

Question # 10

The elimination of HX from adjacent carbon atoms is called

Question # 11

Sp3hybird orbitals are oriented at an angle of

Question # 12

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

Question # 13

Most common reactions of benzene and its derivatives are

Question # 14

During reaction of O2and alkenes, a product:

Question # 15

Acetylene gives

Question # 16

The term aromatic was derives from

Question # 17

Which of the following reaction is characteristic of benzene

Question # 18

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

Question # 19

Which can be used for dehydration of alcohol

Question # 20

Sulphuric acid generates nitronium ion by reacting with

Question # 21

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 # 22

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

Question # 23

The empirical formula of benzene is determined by

Question # 24

The carbon, carbon bond length in benzene is

Question # 25

Alkanes containing carbon C18ownwards are

Question # 26

Which of the following method is most appropriate for the manufacture of methane?

Question # 27

Which is liquid among the following alkenes?

Question # 28

Zn + HCI are used in

Question # 29

How many molecules of chlorine adds in benzene in the presence of sunlight

Question # 30

Mustard gas is a

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ECAT Chemistry Chapter 19 Important MCQ's

Sr.# Question Answer
1 A salt producing hydrocarbon among these compounds is
A. Ehyne
B. Ethene
C. Methane
D. Ethane
2 Which of the following is not an ortho-para directing group
3 Benzene reacts with ozone and gives
A. Glycerin
B. Glyoxal
C. Maleic anhydride
D. Benzoic acid
4 An alkane is produced when an alkyle halide reacts with zinc in the presence of
A. HCl
B. CH3COOH
C. Both a & b
D. None
5 Kolb's method has limited synthetic applications due to
A. Expensive catalysis
B. Slow reaction
C. Number of side products produced
D. Salts used are very expensive
6 The four bonds of carbon in methane are directed towards the corners of
A. Cube
B. Pentagon
C. Hexagon
D. Tetrahedron
7 Benzene can be obtained by heating either benzoic acid with X or phenol with Y. X and Y are respectively
A. Zinc dust and soda lime
B. Soda time and zinc dust
C. Zinc dust and sodium hydroxide
D. Soda lime and copper
8 The addition of unsymmetrical reagent to unsymmetrical alkene is in accordance with the rule:
A. Hund's rule
B. Markownikov's rule
C. Pauli's Exclusion Principle
D. Auf bau Principle
9 To differentiate isomers we use
A. n-
B. iso-
C. neo
D. All of them
10 The hydrocarbon used for polymerization is
A. Alkanes
B. Alkenes
C. Alkynes
D. All of above

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