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

  • Total Questions30

  • Time Allowed30

Start Test Download PDF

ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons

00:00
Question # 1

Hydrocarbons contain :

Question # 2

Complete combustion of alkane yields

Question # 3

Mustard gas is a

Question # 4

Which of the following is an ortho-para directing group

Question # 5

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 # 6

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

Question # 7

A fuel has the same knocking property as a mixture of 70 isooctane (2, 2, 4- trimethyl pentane) and 30% n-heptane by volume the octane number of the fuel is

Question # 8

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

Question # 9

β-β- dichloroethyle sulphide is commonly known as:

Question # 10

The geometry of acetylene is

Question # 11

Synthetic rubber is made by polymerization of

Question # 12

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

Question # 13

The general formula of alkane is

Question # 14

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

Question # 15

acetylene can be converted into-while passing through a Cu-tube at 300°C:

Question # 16

Which is symmetric alkene?

Question # 17

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

Question # 18

The stability of acromatic compounds decreases with ------- in the no. of its resonance structure

Question # 19

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

Question # 20

A six membered ring containing one double bond called

Question # 21

Benzene was discovered by Michael Faraday's in

Question # 22

Which one of the following is (m-xylene)

Question # 23

Which reaction is too vigorous to control

Question # 24

Kolb's method has limited synthetic applications due to

Question # 25

Substituted phenyl groups are called

Question # 26

Write the name of following alkene CH2= CH - CH = CH2

Question # 27

The compound prepared by a substitution reaction of benzene is

Question # 28

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

Question # 29

Preparation of vegetable ghee involves:

Question # 30

Preparation of vegetable ghee involves

Submit

Prepare Complete Set Wise ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons MCQs Online With Answers


Top Scorers Of ECAT Chemistry Chapter 19 Aliphatic Hydrocarbons MCQ`s Test

  • M
    M Umer Arain 29 - Nov - 2024 00 Min 03 Sec 110/120
  • G
    GOVT. SUFFA EDUCATION CENTER GIRLS MURIDKE 01 - Jun - 2024 04 Min 52 Sec 110/120
  • H
    Huzaifa Asim 29 - May - 2024 02 Min 21 Sec 100/120
  • A
    Ali Tariq 23 - May - 2024 08 Min 03 Sec 100/120
  • G
    Ghulam Destgeer Destgeer 23 - May - 2024 08 Min 48 Sec 95/120
  • U
    Usman Saif 29 - May - 2024 04 Min 30 Sec 90/120
  • M
    Mian House 31 - May - 2024 05 Min 31 Sec 90/120
  • K
    khangul murad 09 - Jul - 2024 05 Min 58 Sec 90/120
  • A
    Abdullah Zubair 25 - Dec - 2024 06 Min 24 Sec 90/120
  • H
    Haider Ali 26 - May - 2024 10 Min 39 Sec 90/120
  • K
    Kaif Kaif ali 19 - May - 2024 11 Min 23 Sec 90/120
  • K
    kainat kashif 16 - May - 2024 13 Min 52 Sec 90/120
  • T
    Tasmia 18 - May - 2024 19 Min 18 Sec 90/120
  • M
    Muhammad Ali 25 - Jun - 2024 03 Min 24 Sec 85/120
  • Z
    Zoya Zoya 27 - May - 2024 11 Min 30 Sec 85/120
Sr.# Question Answer
1 Benzene is obtained by fractional distillation of
A. Heavy oil
B. Anthracene oil
C. Middle oil
D. Light oil
2 During the preparation of alkynes the active metals that react with tetra halo-alkanes are
A. Zn
B. Mg
C. Both a and b
D. None
3 Which compound was recognized the parent member of aromatic compounds
A. Aniline
B. Phenol
C. Benzene
D. Toluene
4 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
5 Substitution of halogen in the benzene ring requires catalyst
A. AlCl3
B. FeCl3
C. SiO2
D. Organo - nickel
6 Ethylene combines with water in the presence of H2SO4+ HgSO4and forms
A. Ethyle chloride
B. Ethyle alcohol
C. Carboxylic acid
D. None of these
7 For preparing an alkane, a concentrated aqueous solution of sodium or potassium salt of saturated carboxylic acid is subjected to
A. Hydrolysis
B. Oxidation
C. Hydrogenation
D. Electrolysis
8 Which one of the following is (m-xylene)
A. 1,2 dimethyl benzene
B. 1,3 dimethyl benzene
C. 1,5 dimethyl benzene
D. 1,4 dimethyl benzene
9 The major reaction occurring in the engines of automobiles is
A. Oxidation
B. Reducing
C. Combustion
D. Decomposition
10 Which gas is produced by treating CaC2with water
A. Methane
B. Ethane
C. Acetylene
D. HCI
11 Meta directing group decreased the ----------- of benzene ring
A. Physical activity
B. Chemical reactivity
C. Density
D. None
12 Mustard gas is a :
A. Gas
B. Liquid
C. Solid
D. High boiling point
13 Hybridization in alkanes is:
A. sp
B. sp2
C. sp3
D. dsp2
14 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
15 The order of reactivity of halogens in aliphatic substitution reactions is
A. Br2 > C12 > F2
B. C12 > Br2 > F2
C. C12 C12 > Br2
D. F2 > Br2 > C12
16 Eletronegativity difference in C-C bond in alkanes is:
A. Zero
B. Double
C. Half
D. 4.0
17 Benzene is prepared from n-hexane in the presence of catalyst
A. Cr2O3
B. Al2O3
C. SiO2
D. All above
18 Benzene reacts with ozone and gives
A. Glycerin
B. Glyoxal
C. Maleic anhydride
D. Benzoic acid
19 The next homologue of C10H22will be
A. C9H20
B. C12H26
C. C11H24
D. C13H28
20 Alkynes are colourless & odouless except
A. Acetylene
B. Propyne
C. Butyne
D. Pentyne
21 Kolb's method is not useful for the production of
A. Methane
B. Ethane
C. Propane
D. Butane
22 The process in which orbitals of different energies and shapes mix with each other to give equivalent hybrid orbitals is called
A. Isomerization
B. polymerization
C. Hybridization
D. Resonance
23
Question Image
A. Pent -1-ene-3-yne
B. 2-pentyne-4-ene
C. 1-pentene-3-yne
D. Pent-2-yen-4-ene
24 Benzene is obtained from benzene sulphonic acid by treating with
A. HCl
B. NaOH
C. H2O
D. NaHCO3
25 The alkynides are used for the ----------- of alkynes
A. Pxperation
B. Purification
C. Seperation
D. All of above
26 Odour of alkene is:
A. Fruity
B. Odourless
C. Zarlic like
D. Irritating
27 Which is liquid among the following alkenes?
A. Ethane
B. Propene
C. Butene
D. Pentene
28 Synthetic rubber is made by polymerization of
A. Chloroform
B. Acetylene
C. Divinlacetylene
D. Butene
29 Alkanes are least reactive towards:
A. Acids and bases
B. Reducing agents
C. Oxidizing agents
D. All of these
30 Ethylene can be prepared in the laboratory by heating together ethyl alcohol and
A. HCI
B. Phenol
C. HF
D. H2SO4

Test Questions

Is this page helpful?