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

Hybridization in alkanes is:

Question # 2

The simplest and the parent members of aromatic hydrocarbon is

Question # 3

Alkynes are colourless & odouless except

Question # 4

β-β- dichloroethyle sulphide is commonly known as:

Question # 5

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

Question # 6

Alkanes are soluble in all except

Question # 7

Cyclohexane can be converted not benzene in the presence of

Question # 8

Most common reactions of benzene and its derivatives are

Question # 9

Benzene is not prepared from

Question # 10

Vinyl acetylene combines with HCI to form

Question # 11

Raney - nickel is the alloy of Ni with

Question # 12

The hydrocarbon used for polymerization is

Question # 13

The geometry of acetylene is

Question # 14

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

Question # 15

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

Question # 16

Sulphuric acid generates nitronium ion by reacting with

Question # 17

Which one of the following is (m-xylene)

Question # 18

Which of the following reaction is characteristic of benzene

Question # 19

Alkene general formula :

Question # 20

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 # 21

When an aqueous solution of potassium salt of monocarboxylic acid is subjected to electrolysis, corresponding alkane is formed. This reation is known as

Question # 22

The addition of unsymmetrical reagent to an unsymmetrical alkene is in accordance with the rule

Question # 23

Preparation of vegetable ghee involves

Question # 24

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

Question # 25

Free radical mechanism of halogenation of alkanes follow step:

Question # 26

The hydrocarbon which is used as an illuminating agent

Question # 27

An organic compound, on treatment with Br2 in CC14 gives bromoderivative of an alkene. The compound will be

Question # 28

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

Question # 29

Benzene has a -------- structure

Question # 30

Substituted phenyl groups are called

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ECAT Chemistry Chapter 19 Important MCQ's

Sr.# Question Answer
1 The simplest and the parent members of aromatic hydrocarbon is
A. Benzene
B. Toluene
C. Biphenyis
D. Naphthalene
2 The reaction in which ketone is reduced to the alkane is called
A. Kolb
B. Clemmensen
C. Cannizzaro
D. None
3 The addition of unsymmetrical reagent to an unsymmetrical alkene is in accordance with
A. Hund's rule
B. Markownikov's rule
C. Pauli's Exclusion principle
D. Auf ban principle
4 Introduction of a second methyl group in methylbenzene will give how many isomeric dimethyllenzenes
A. 2
B. 1
C. 3
D. 4
5 Which one of the following is (m-xylene)
A. 1,2 dimethyl benzene
B. 1,3 dimethyl benzene
C. 1,5 dimethyl benzene
D. 1,4 dimethyl benzene
6 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
7 Benzene does not undergo polymerization and it is also resistant to
A. Reduction
B. Oxidation
C. Alkylation
D. Ozonolysis
8 When n-hexane is heated in the presence of Pt at 500°C, it cyclists to give
A. Benzene
B. Cyclohexene
C. Benzene
D. Toluene
9 When alkyl is treated with chlorine in the presence of sunlight
A. 1,3 dichloroproduct is formed
B. 1,4 dichloro product is formed
C. 1,3,5 trichloro product is formed
D. Only alkyl group is substituted
10 Which of the following species participate in sulphonation of benzene ring?
A. H2SO4
B. HSO4
C. SO3
D. SO-2

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