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

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

Question # 2

Which of the following possesses the highest melting point?

Question # 3

Which one of the following gases is used for artificial ripening of fruits ?

Question # 4

Odour of alkene is:

Question # 5

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

Question # 6

The method used only for the production of symmetrical alkanes

Question # 7

Formula of chloroform is

Question # 8

Preparation of vegetable ghee involves

Question # 9

Alkanes have functional group :

Question # 10

Boiling point of n-butane is:

Question # 11

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 # 12

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

Question # 13

Acetylene gives

Question # 14

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 # 15

Which one of following is not monocyclic aromatic hydrocarbon

Question # 16

The term aromatic was derives from

Question # 17

Which one of the following gases is used for artificial ripening of fruits

Question # 18

The carbon, carbon bond length in benzene is

Question # 19

Mustard gas is a :

Question # 20

If we remove one hydrogen atom from an alkane we obtain a group called

Question # 21

C18and onward hydrocarbons are normally

Question # 22

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

Question # 23

The elimination of HX from adjacent carbon atoms is called

Question # 24

Hybridization in alkanes is:

Question # 25

When methane reacts with Cl2in the presence of diffused light the products obtained are

Question # 26

Which of the following is not aromatic hydrogencarbon

Question # 27

Kolb's method has limited synthetic applications due to

Question # 28

The correct order of reactivity of halogens with alkanes is

Question # 29

The presence of a double bond in a compound is the sign of

Question # 30

Which of the following is not an ortho-para directing group

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ECAT Chemistry Chapter 19 Important MCQ's

Sr.# Question Answer
1 Ethylene can be prepared in the laboratory by heating together ethyl alcohol and
A. HCI
B. Phenol
C. HF
D. H2SO4
2
Question Image
A. 4-methyl pentene
B. 2-methyle-1-butene
C. 2-methyl propane
D. None of the above
3 Sulphuric acid generates nitronium ion by reacting with
A. Nitric acid
B. Nitrogen gas
C. Nitrous acid
D. Potassium nitrate
4 Which reaction is too vigorous to control
A. Chlorination
B. Bromination
C. Iodination
D. Fluorination
5 "Each different compound should have a different name" was published by IUPAC system of nomenclature in
A. 1892
B. 1830
C. 1947
D. 1979
6 All C - H bond lengths of benzene ring is
A. 1.07A°
B. 1.09A°
C. 1.08A°
D. None
7 Which one of the following gases is used for artificial ripening of fruits
A. Ethene
B. Ethane
C. Methane
D. Propane
8 Which of the following is not aromatic hydrogencarbon
A. Benzene
B. Naphthalene
C. Toluene
D. Cyclohexene
9 Which of the following is not an ortho-para directing group
10 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

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