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

Kolb's method is not useful for the production of

Question # 2

Incomplete oxidation of alkanes yields

Question # 3

An alkynes having Carbon count of 20 is

Question # 4

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

Question # 5

Nitroalkane are used in

Question # 6

The hydrocarbons having double bonds normally end with suffix

Question # 7

Preparation of ethylbenzene by the reaction of bromobenzene, ethylbromide and sodium is called

Question # 8

Substitution of halogen in the benzene ring requires catalyst

Question # 9

Substituted phenyl groups are called

Question # 10

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

Question # 11

What is not a common use of methane

Question # 12

Benzene was discovered by Michael Faraday's in

Question # 13

When n-hexane is heated in the presence of Pt at 500°C, it cyclists to give

Question # 14

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

Question # 15

Cyclohexane can be converted not benzene in the presence of

Question # 16

During the preparation of alkynes the active metals that react with tetra halo-alkanes are

Question # 17

The order of dehydration of alcohol

Question # 18

Amongst the following the compound that can be most readily sulphonated is

Question # 19

Which of the following is not an electrophitic substitution reaction of benzene

Question # 20

Eletronegativity difference in C-C bond in alkanes is:

Question # 21

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

Question # 22

All C - H bond lengths of benzene ring is

Question # 23

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

Question # 24

Alkyl halides when reduced with nascent hydrogen in the presence of Zn + HCI, are converted to

Question # 25

The correct order of reactivity of halogens with alkanes is

Question # 26

The major reaction occurring in the engines of automobiles is

Question # 27

During nitration of benzene, the active nitrating agent is

Question # 28

Ethylene polymerizes at 100 atm pressure and 400°C to give

Question # 29

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

Question # 30

Which of the following is an ortho-para directing group

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ECAT Chemistry Chapter 19 Important MCQ's

Sr.# Question Answer
1 Substituted phenyl groups are called
A. acyl groups
B. phenyl groups
C. Aryl groups
D. Alkyle groups
2 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
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
A. Sabatier-senderens reaction
B. kolbes reaction
C. Cannizaro's reaction
D. Haloform reaction
4 Kolb's method is not useful for the production of
A. Methane
B. Ethane
C. Propane
D. Butane
5 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
6 Which of the following substances is used as an antiknock compound?
A. Tetraethyl lead
B. Lead tetrachloride
C. Lead acetate
D. Ethyle acetate
7 Raney - nickel is the alloy of Ni with
A. Pt
B. Al
C. Cu
D. Pd
8 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
9 All C - H bond lengths of benzene ring is
A. 1.07A°
B. 1.09A°
C. 1.08A°
D. None
10 Benzene is prepared from n-hexane in the presence of catalyst
A. Cr2O3
B. Al2O3
C. SiO2
D. All above

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