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

Which is more active ?

Question # 2

The hydrocarbon which is used as an illuminating agent

Question # 3

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

Question # 4

Ethylene decolorizes cold dilute solution of KMnO4. This test is known as

Question # 5

The geometry of acetylene is

Question # 6

An alkane is produced when an alkyle halide reacts with zinc in the presence of

Question # 7

During the preparation of alkanes the hydrogenation of alkenes or alkynes the catalyst may be

Question # 8

The hydrocarbon used for polymerization is

Question # 9

The sp2hybird orbitals are oriented in space at one angle

Question # 10

Catalytic oxidation of alkanes is used for the preparation of

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

The nitration of benzene takes place when it is heated with a mixture of conc.HNO3and conc. H2SO4at 50°C in ratio of

Question # 13

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

Question # 14

"Each different compound should have a different name" was published by IUPAC system of nomenclature in

Question # 15

The alkynides are used for the ----------- of alkynes

Question # 16

The temp. used for the hydrogenation of alkenes using Ni is

Question # 17

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

Question # 18

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

Question # 19

Which is the used as test for the presence of alkenes

Question # 20

Aromatic hydrocarbons are the derivatives of

Question # 21

A salt producing hydrocarbon among these compounds is

Question # 22

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

Question # 23

Alkanes have functional group :

Question # 24

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

Question # 25

When benzene is burnt in free supply of air, it is completely oxidized to

Question # 26

Benzene does not undergo

Question # 27

Octane number can be changed by

Question # 28

When sodium benzoate is treated with soda lime (NaOH) benzene is formed. What is the other product

Question # 29

To differentiate isomers we use

Question # 30

Preparation of vegetable ghee involves

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ECAT Chapter 19 Important MCQ's

Sr.# Question Answer
1 Marsh gas was the name given to
A. Methane
B. Ethane
C. Propane
D. Butane
2 Synthetic rubber is made by polymerization of
A. Chloroform
B. Acetylene
C. Divinlacetylene
D. Butene
3 Alkyne is :
A. CH3-CH3
B. CH4
C. CH2=CH2
D. C2H2
4 Which of the following substances is used as an antiknock compound?
A. Tetraethyl lead
B. Lead tetrachloride
C. Lead acetate
D. Ethyle acetate
5 When acetylene is passed through a copper tube at 300°C, it polymerizes to
A. Polyacetylene
B. polyethylene
C. Benzene
D. None of these
6 Hybridization in alkanes is:
A. sp
B. sp2
C. sp3
D. dsp2
7 The next homologue of C10H22will be
A. C9H20
B. C12H26
C. C11H24
D. C13H28
8 Preparation of ethylbenzene by the reaction of bromobenzene, ethylbromide and sodium is called
A. Wurtz reaction
B. Fitting reaction
C. Wurtz fitting reaction
D. None of these
9 Write the name of following alkene CH2= CH - CH = CH2
A. 1,3 butadiene
B. Butra -1, 3-diene
C. Both a & b
D. None
10 During the preparation of alkynes the active metals that react with tetra halo-alkanes are
A. Zn
B. Mg
C. Both a and b
D. None

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