ECAT Pre Engineering Chemistry Chapter 21 MCQ Test With Answer

MCQ's Test For ECAT Chemistry Chapter 21 Alkyl Halides

Try The MCQ's Test For ECAT Chemistry Chapter 21 Alkyl Halides

  • Total Questions30

  • Time Allowed30

Start Test Download PDF

ECAT Chemistry Chapter 21 Alkyl Halides

00:00
Question # 1

The order of reactivity for a given halogen in Grignard's reagent is:

Question # 2

Cl2reacts with CS2in presence of AlCl3to form

Question # 3

Grignard reagent is reactive due to :

Question # 4

On warming with silver powder,chloroform is converted into

Question # 5

The rate of E1reaction depends upon:

Question # 6

Benzene reacts with chlorine to form benzene hexachloride in presence of

Question # 7

Which one of the following is not a nucleophile

Question # 8

Hydrolysis of Grignard's reagent gives:

Question # 9

Organic compounds containing halogen atom are called:

Question # 10

When primary amine reacts with chloroform in ethanolic KOH, then the product is

Question # 11

Ethyl bromide is formed by the reaction of HBr with

Question # 12

Alkyl halides in which a halogen atom is bonded to that carbon atom which directly bonded with one hydrogen atom is called

Question # 13

When an alcohol reacts with SOCI2an alkyl halide is formed. What are two other products

Question # 14

Aryl halides are less reactive towards nucleophilic substitution reactions as compared to alkyl halides due to

Question # 15

An electrophile may be

Question # 16

When metallic sodium in ether is heated with ethyl chloride, which alkane is formed

Question # 17

The final product formed by distilling ethyl alcohol with excess of Cl2 and Ca(OH)2is

Question # 18

Which of the following compounds gives trichoromethane on distilling with bleaching power?

Question # 19

Any other aldehyde except formaldehyde on reaction with Grignard's will produce

Question # 20

Which one of the following will have the maximum dipole moment

Question # 21

What is the total number of different chloroethanes of formula C2H6-nClnpossible (n may be 1 to 6)

Question # 22

Grignard reagent is prepared by the reaction of magnesium metal with alkyl halide in the presence of

Question # 23

Each of the following compounds is effective as a refrigerant. The release of which one of these causes the greatest depletion of the ozone layer

Question # 24

By simply reacting Grignand's reagent with water we get

Question # 25

Among the following the most reactive towards alcoholic KOH is

Question # 26

E2has molecularity :

Question # 27

General formula of alkyl halide is:

Question # 28

Dehydrohalogenation of alkyl halides produces

Question # 29

Action of Zn with alkyl halides in the presence of an inert solvent forms higher alkanes. This reaction is known as

Question # 30

Which one of the following is not a nuclelphile

Submit

Prepare Complete Set Wise ECAT Chemistry Chapter 21 Alkyl Halides MCQs Online With Answers


Topic Test

00:00
Submit

Top Scorers Of ECAT Chemistry Chapter 21 Alkyl Halides MCQ`s Test

  • M
    Mehreen Ather 19 - Dec - 2024 07 Min 45 Sec 85/120
  • G
    GOVT. SUFFA EDUCATION CENTER GIRLS MURIDKE 01 - Jun - 2024 08 Min 45 Sec 85/120
  • A
    Ayra Arshad 06 - Jul - 2024 04 Min 14 Sec 80/120
  • A
    Ali Asad Samejo 29 - Mar - 2024 05 Min 16 Sec 80/120
  • M
    Maryam Hamda 27 - May - 2024 14 Min 17 Sec 70/120
  • M
    Muhammad Ali 27 - Jun - 2024 04 Min 34 Sec 60/120
  • H
    Huzaifa Asim 30 - May - 2024 06 Min 34 Sec 60/120
  • N
    Nauman Iqbal 12 - Apr - 2024 13 Min 49 Sec 60/120
  • I
    I am Ishaxtar 25 - Mar - 2026 07 Min 12 Sec 56/120
  • N
    Namers studio 13 - May - 2024 07 Min 23 Sec 55/120
  • T
    Tamshi Sohail 04 - May - 2024 08 Min 28 Sec 55/120
  • G
    Gulfam Ahmad 06 - May - 2024 09 Min 34 Sec 55/120
  • Z
    Zoya Zoya 27 - May - 2024 18 Min 52 Sec 55/120
  • R
    Rana waqar 02 - Jun - 2024 09 Min 52 Sec 50/120
  • A
    Abdullah Zubair 05 - Jan - 2025 11 Min 02 Sec 50/120

ECAT Chemistry Chapter 21 Important MCQ's

Sr.# Question Answer
1 In which of the following reactions is the inorganic reagent acting as a nucleophile
2 E1mechanism is generally shown by
A. 1° - RX
B. 2° - RX
C. 3° - RX
D. None of these
3 Metal used in the preparation of Grignard's reagent is:
A. Ca
B. Na
C. Mg
D. Zn
4 Which of the following with aqueous KOH will give acetaldehyde?
A. 1, 2-Dichloroethane
B. 1,1-Dichloroethane
C. Chloracetic acid
D. Ethyl chloride
5 Which of the following undergoes uncleophilic substitution exclusively by SN1 mechanism?
A. Benzyl chloride
B. Ethyl chloride
C. Chlorobenzene
D. Isopropyl choride
6 Chlorobenzene on heating with aqueous NH3under pressure in the presence of cuprous chloride gives
A. Benzamide
B. Nitrobenzene
C. Aniline
D. Chloroaminobenzene
7 Alkyl halides are reactive :
A. High
B. Medium
C. Less
D. Least
8 The compounds or species in search of electrons are called
A. Elctrophiles
B. Nucleophile
C. Nitrities
D. Bases
9 The elimination of hydrogen halide from adjacent carbon atoms is called
A. Dehydrogenation
B. Hydrogenation
C. Dehydrohalogenation
D. Hydrohalogenation
10 On warming with silver powder,chloroform is converted into
A. Acetylene
B. Hexachloroethane
C. 1,1,2,2-tetrachloroethane
D. ethylene

Test Questions