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 saturated hydrocarbons usually end with suffix ______

Question # 2

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

Question # 3

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

Question # 4

Acetylene when treated with 10% H2SO4in the presence of HgSO4adds one molecule of water to form

Question # 5

Hydrocarbons are organic compounds which contain elements such as

Question # 6

Benzene is prepared from n-hexane in the presence of catalyst

Question # 7

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

Question # 8

Benzene is not prepared from

Question # 9

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

Question # 10

Ethylene combines with water in the presence of H2SO4+ HgSO4and forms

Question # 11

Hydrocarbon which is liquid at room temperature is

Question # 12

Alkene general formula :

Question # 13

Preparation of vegetable ghee involves

Question # 14

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

Question # 15

Raney - nickel is the alloy of Ni with

Question # 16

Alkanes have functional group :

Question # 17

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

Question # 18

The hydrocarbon used for polymerization is

Question # 19

Sulphuric acid generates nitronium ion by reacting with

Question # 20

The difference between amount of heat actually released and that of calculated is called

Question # 21

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

Question # 22

Acetylene gives

Question # 23

Which compound was recognized the parent member of aromatic compounds

Question # 24

The carbon, carbon bond length in benzene is

Question # 25

Formula of chloroform is

Question # 26

Which is symmetric alkene?

Question # 27

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

Question # 28

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

Question # 29

Preparation of vegetable ghee involves

Question # 30

Alkanes are gases :

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ECAT Chemistry Chapter 19 Important MCQ's

Sr.# Question Answer
1 Toluene is also called
A. Hydroxyl benzene
B. Methyl benzene
C. ethyl benzene
D. None
2 Kolb's method of alkanes production, is actually
A. Hydrolysis
B. Catalysis
C. Electrolysis
D. Hydrogenation
3 During the preparation of alkanes the hydrogenation of alkenes or alkynes the catalyst may be
A. H2SO4
B. Ni
C. Fe2O3
D. Al2O3
4 Alkynes are colourless & odouless except
A. Acetylene
B. Propyne
C. Butyne
D. Pentyne
5 Which one of the following gases is used for artificial ripening of fruits ?
A. Ethane
B. Ethyne
C. Methane
D. Propane
6 Formula of chloroform is:
A. CH3Cl
B. CCl4
C. CH2Cl2
D. CHCl3
7 Physical properties of alkanes increase with increase of all physical constants except
A. Boiling points
B. Melting points
C. Density
D. Solubility
8 Which compound was recognized the parent member of aromatic compounds
A. Aniline
B. Phenol
C. Benzene
D. Toluene
9 Which one of the following gases is used for artificial ripening of fruits
A. Ethane
B. Ethyne
C. Methane
D. Propane
10 In which one of the following compound rings are not fused together at ortho positions
A. Phenanthrene
B. Naphthalene
C. Diphenyemethane
D. Anthracene

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