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

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

Question # 2

Nitroalkane are used in

Question # 3

When alkyl is treated with chlorine in the presence of sunlight

Question # 4

Odour of alkene is:

Question # 5

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

Question # 6

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

Question # 7

Cyclohexane can be converted not benzene in the presence of

Question # 8

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

Question # 9

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

Question # 10

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

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

Hybridization in alkanes is:

Question # 13

Meta directing group decreased the ----------- of benzene ring

Question # 14

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

Question # 15

The next homologue of C10H22will be

Question # 16

Acetylene is used in the manufacture of

Question # 17

In CH4, all the H-C-H bond angles are

Question # 18

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

Question # 19

B-B'-dichloroethyl sulphide is commonly known as

Question # 20

Alkyl benzenes are readily oxidized by axidfied

Question # 21

The method in which alkanes prepared by alkyle halides in the presence of palladium - charcoal is

Question # 22

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

Question # 23

Which decolourizes the colour of Br3

Question # 24

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

Question # 25

Raney - nickel is the alloy of Ni with

Question # 26

Zn + HCI are used in

Question # 27

A salt producing hydrocarbon among these compounds is

Question # 28

The method used only for the production of symmetrical alkanes

Question # 29

What is not a common use of methane

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 Benzene does not undergo polymerization and it is also resistant to
A. Reduction
B. Oxidation
C. Alkylation
D. Ozonolysis
2 The presence of a double bond in a compound in the sign of:
A. Saturation
B. Unsaturation
C. Subsitution
D. None
3 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
4 When an aqueous solution of potassium salt of monocarboxylic acid is subjected to electrolysis, corresponding alkane is formed. This reation is known as
A. Cannizaro reaction
B. Sabatier-secderens reaction
C. Alkylation
D. Kolbe's reaction
5 The method used only for the production of symmetrical alkanes
A. Kolb's method
B. Clemmenen
C. Cannizzaro
D. Wolf kishner
6 Ethylene decolorizes cold dilute solution of KMnO4. This test is known as
A. Colouration test
B. Baeyer's test
C. Silver mirror test
D. Ring test
7 Substitution of halogen in the benzene ring requires catalyst
A. AlCl3
B. FeCl3
C. SiO2
D. Organo - nickel
8 Acetylene is used in the manufacture of
A. Rubber
B. Plastic
C. Ethyle alcohol
D. All of these
9 acetylene can be converted into-while passing through a Cu-tube at 300°C:
A. Glyoxal
B. Vinyl acetylene
C. Vinyl alcohol
D. Benzene
10 Hydrocarbons are divided into aliphatic, alicyclic and aromatic which structure among the following show an alicyclic hydrocarbon

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