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

Amongst the following the compound that can be most readily sulphonated is

Question # 2

Which compound was recognized the parent member of aromatic compounds

Question # 3

Which one gives acidic reactions?

Question # 4

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

Question # 5

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

Question # 6

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

Question # 7

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

Question # 8

Eletronegativity difference in C-C bond in alkanes is:

Question # 9

Alkene general formula :

Question # 10

Which reaction sequence would be best to prepare 3-chloro-aniline from benzene?

Question # 11

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

Question # 12

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

Question # 13

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

Question # 14

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

Question # 15

Which of the following is not an ortho-para directing group

Question # 16

Which of the following is not an electrophitic substitution reaction of benzene

Question # 17

Which of the following is an ortho-para directing group

Question # 18

Alkenes combine readily with electrophillic reagents such as halogens giving

Question # 19

Which one of the following is (m-xylene)

Question # 20

Cyclohexane can be converted not benzene in the presence of

Question # 21

Ethylene polymerizes at 100 atm pressure and 400°C to give

Question # 22

Kolb's method of alkanes production, is actually

Question # 23

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

Question # 24

Which gas is used for welding purposes

Question # 25

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

Question # 26

Nitroalkane are used in

Question # 27

Alkyl halides when reduced with nascent hydrogen in the presence of Zn + HCI, are converted to

Question # 28

Which of the following decolorized Br2-water

Question # 29

Benzene does not undergo polymerization and it is also resistant to

Question # 30

Boiling point of n-butane is:

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Sr.# Question Answer
1 Cyclohexane can be converted not benzene in the presence of
A. Pt at 100°C
B. Pt at 250°C
C. Pd at room temperature
D. Pt at room temperature
2 Alkyl benzenes are readily oxidized by axidfied
A. KMnO4
B. K2CO3
C. MnO4
D. H2SO4
3 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
A. Sabatier-senderens reaction
B. kolbes reaction
C. Cannizaro's reaction
D. Haloform reaction
4 The addition of unsymmetrical reagent to an unsymmetrical alkene is in accordance with the rule
A. Hund's rule
B. Markowvikov's rule
C. Pauli's exclusion principle
D. Auf ban principle
5 The four bonds of carbon in methane are directed towards the corners of
A. Cube
B. Pentagon
C. Hexagon
D. Tetrahedron
6 The term aromatic was derives from
A. Greek word
B. Latin
C. Russian
D. English
7 Alkanes are gases :
A. C1-C4
B. C5-C10
C. C11-C15
D. C10-C20
8 Hydrocarbons contain :
A. Carbon only carbon
B. Hydrogen only
C. Carbon & hydrogen
D. Carbon , hydrogen & halogen
9 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
10 De halogenatiion of tetrahalides happens in the presence of active metal like
A. Zn
B. Mg
C. Both a and b
D. None of them

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