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 of the following possesses the highest melting point?

Question # 2

The simplest and the parent members of aromatic hydrocarbon is

Question # 3

The electrophile in aromatic sulphonation is

Question # 4

During reaction of O2and alkenes, a product:

Question # 5

Which can be used for dehydration of alcohol

Question # 6

The addition of HBr is easiest with

Question # 7

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

Question # 8

Alkynes are colourless & odouless except

Question # 9

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

Question # 10

A single benzene ring can have ______ ortho position maximally

Question # 11

The molecule of ethane possess which hybrization

Question # 12

Preparation of vegetable ghee involves

Question # 13

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

Question # 14

Replacement of hydrogen by NO2group is called

Question # 15

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

Question # 16

The next homologue of C10H22will be

Question # 17

Alkanes are least reactive towards:

Question # 18

Vinyl acetylene combines with HCI to form

Question # 19

Which is the used as test for the presence of alkenes

Question # 20

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

Question # 21

Catalytic oxidation of alkanes is used for the preparation of

Question # 22

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 # 23

All are ortho & Para directing except

Question # 24

β-β- dichloroethyle sulphide is commonly known as:

Question # 25

Marsh gas was the name given to

Question # 26

Raney - nickel is the alloy of Ni with

Question # 27

The reaction in which ketone is reduced to the alkane is called

Question # 28

The method involved for electrolysis of Na or K salts of carboxylic acids

Question # 29

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

Question # 30

Preparation of vegetable ghee involves:

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ECAT Chemistry Chapter 19 Important MCQ's

Sr.# Question Answer
1 Alkene general formula :
A. CnH2n+2
B. CnH2n
C. CnH2n-2
D. CnH2n+1
2 Alkanes containing carbon C18ownwards are
A. Gases
B. Liquids
C. Waxy solids
D. Solids
3 "Each different compound should have a different name" was published by IUPAC system of nomenclature in
A. 1892
B. 1830
C. 1947
D. 1979
4 The alkynides are used for the ----------- of alkynes
A. Pxperation
B. Purification
C. Seperation
D. All of above
5 When sodium benzoate is treated with soda lime (NaOH) benzene is formed. What is the other product
A. Na2CO3
B. NaHCO3
C. Ca(OH)2
D. CaCO3
6 acetylene can be converted into-while passing through a Cu-tube at 300°C:
A. Glyoxal
B. Vinyl acetylene
C. Vinyl alcohol
D. Benzene
7 Which of the following is not an ortho-para directing group
8 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
9 The empirical formula of benzene is determined by
A. IR spectra
B. U.V
C. Elemental analysis
D. NMR spectra
10 Most common reactions of benzene and its derivatives are
A. electrophilic addition reactions
B. electrophilic substitution reactions
C. Nucleophilic addition reactions
D. Nucleophilic subtitution reactions

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