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

The simplest and the parent members of aromatic hydrocarbon is

Question # 2

The three alternate single and double bonds in the benzene ring are called

Question # 3

Kolb's method is not useful for the production of

Question # 4

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

Question # 5

Synthesis of rubber is made by polymerization of

Question # 6

Alkyne is :

Question # 7

Alkenes combine readily with electrophillic reagents such as halogens giving

Question # 8

Hydrocarbons are organic compounds which contain elements such as

Question # 9

Physical properties of alkanes increase with increase of all physical constants except

Question # 10

Preparation of vegetable ghee involves

Question # 11

the unreactivity of alkanes is based upon

Question # 12

The hydrocarbon which is used as an illuminating agent

Question # 13

Kolb's method has limited synthetic applications due to

Question # 14

In Friedal-Craft's alkylation besides AlCl3 the other reactants are

Question # 15

The saturated hydrocarbons usually end with suffix ______

Question # 16

Which class of compound is more reactive

Question # 17

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

Question # 18

What is not a common use of methane

Question # 19

De halogenatiion of tetrahalides happens in the presence of active metal like

Question # 20

B-B'-dichloroethyl sulphide is commonly known as

Question # 21

Benzene is obtained from benzene sulphonic acid by treating with

Question # 22

Which is liquid among the following alkenes?

Question # 23

Which is symmetric alkene?

Question # 24

Hybridization in alkanes is:

Question # 25

C18and onward hydrocarbons are normally

Question # 26

The hydrocarbons having double bonds normally end with suffix

Question # 27

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

Question # 28

Vinyl acetylene combines with HCl to form:

Question # 29

The C-C bond angles in benzene ring are

Question # 30

Benzene does not undergo polymerization and it is also resistant to

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ECAT Chemistry Chapter 19 Important MCQ's

Sr.# Question Answer
1 The alkynides are used for the ----------- of alkynes
A. Pxperation
B. Purification
C. Seperation
D. All of above
2 The four bonds of carbon in methane are directed towards the corners of
A. Cube
B. Pentagon
C. Hexagon
D. Tetrahedron
3 Sulphuric acid generates nitronium ion by reacting with
A. Nitric acid
B. Nitrogen gas
C. Nitrous acid
D. Potassium nitrate
4 Benzene is obtained from benzene sulphonic acid by treating with
A. HCl
B. NaOH
C. H2O
D. NaHCO3
5 The three alternate single and double bonds in the benzene ring are called
A. Conjugate bonds
B. Resonating bonds
C. Both A and B
D. None of above
6 "Each different compound should have a different name" was published by IUPAC system of nomenclature in
A. 1892
B. 1830
C. 1947
D. 1979
7 If we remove one hydrogen atom from an alkane we obtain a group called
A. Acetyle group
B. Formyle group
C. Alkyle group
D. Ketyle group
8 A single benzene ring can have ______ ortho position maximally
A. One
B. Two
C. Three
D. Four
9 An organic compound, on treatment with Br2 in CC14 gives bromoderivative of an alkene. The compound will be
A. CH3 - CH = Ch2
B. CH3CH = CHCH3
C. HC = CH
D. H2C = CH2
10 Preparation of vegetable ghee involves
A. Halogenations
B. Hydrogenations
C. Hydroxylation
D. Dehydrogenations

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