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

00:00
Question # 1

Benzene can be obtained by heating either benzoic acid with X or phenol with Y. X and Y are respectively

Question # 2

Which gas is produced by treating CaC2with water

Question # 3

Formula of chloroform is:

Question # 4

Which is symmetric alkene?

Question # 5

Which reaction sequence would be best to prepare 3-chloro-aniline from benzene?

Question # 6

Aromatic hydrocarbons are the derivatives of

Question # 7

Alkanes are least reactive towards:

Question # 8

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

Question # 9

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

Question # 10

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

Question # 11

Sulphuric acid generates nitronium ion by reacting with

Question # 12

The method used only for the production of symmetrical alkanes

Question # 13

The electron releasing effect of methyl group is significant and it makes ring a good

Question # 14

During nitration of benzene, the active nitrating agent is

Question # 15

Which gas is used for welding purposes

Question # 16

Toluene is also called

Question # 17

Synthesis of rubber is made by polymerization of

Question # 18

Benzene is not prepared from

Question # 19

How many isomeric disubtituted products are obtained by the introducing of second group in the ring

Question # 20

Kolb's method of alkanes production, is actually

Question # 21

Acetylene gives

Question # 22

The C-C bond angles in benzene ring are

Question # 23

When alkyl is treated with chlorine in the presence of sunlight

Question # 24

Alkynes are colourless & odouless except

Question # 25

Which one gives acidic reactions?

Question # 26

The benzene molecule contains

Question # 27

The hydrocarbons having double bonds normally end with suffix

Question # 28

Preparation of vegetable ghee involves

Question # 29

The carbon, carbon bond length in benzene is

Question # 30

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

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ECAT Chemistry Chapter 19 Important MCQ's

Sr.# Question Answer
1 Which one of following is not monocyclic aromatic hydrocarbon
A. Benzaldehyde
B. Benzoic acid
C. Benzene sulfonic acid
D. Biphenyl
2 Benzene is obtained from benzene sulphonic acid by treating with
A. HCl
B. NaOH
C. H2O
D. NaHCO3
3 When methane reacts with Cl2in the presence of diffused light the products obtained are
A. Chloroform only
B. Carbon tetrachloride only
C. Chloromethane and dichloromethane
D. Mixture of a, b, c
4 Aromatic hydrocarbons are the derivatives of
A. Normal series of paraffins
B. Alkene
C. Benzene
D. Cyclohexane
5 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
6 Catalytic oxidation of alkanes is used for the preparation of
A. Adehydes
B. Ketones
C. Fatty acid
D. Carbonyylic acids
7 Mustard gas is a
A. Gas
B. High boiling speed
C. High melting liquid
D. Steam
8 The process in which orbitals of different energies and shapes mix with each other to give equivalent hybrid orbitals is called
A. Isomerization
B. polymerization
C. Hybridization
D. Resonance
9 Ethylene polymerizes at 100 atm pressure and 400°C to give
A. Polybenzene
B. Polyalcohol
C. Polypropylene
D. Polyethylene
10 When sodium benzoate is treated with soda lime (NaOH) benzene is formed. What is the other product
A. Na2CO3
B. NaHCO3
C. Ca(OH)2
D. CaCO3

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