Question # 1

By simply reacting Grignand's reagent with water we get

Choose an answer

An alkane

Higher alkane

An alkene

An alkyne

Gammexane is

Choose an answer

Chlorobenzene

Benzyl chloride

Brommobenzene

Benzene hexachloride

What is the total number of different chloroethanes, formula C₂H_6-nCl_n, where n can be any integer from 1 to 4

Choose an answer

4

6

7

8

Hydrolysis of Grignard's reagent yields

Choose an answer

Alcohol

Aldyhyde

Ester

Alkane

Which of the following alkyl halides is used as a mathylating agent

Choose an answer

CH₂H₅l

CH₃l

C₂H₅Pr

C₂H₅Cl

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

Choose an answer

Primary alkyl halides

Secondary alkyl halides

Tertiary alkyl halides

Quaternary alkyl halides

Choose an answer

Electrophilic substitution

Free radical reduction

Isomerisation

Nucleophilic substitution

When ethyl iodide and n-propyl iodide are allowed to react with sodium metal in ether, the number of alkanes that could be produced is

Choose an answer

Only one

Two alkanes

Three alkanes

Four alkanes

SN2 reaction can be best carried out with

Choose an answer

Primary alkyl halides

Secondary alkyl halides

Tertiary alkyl halides

All the three

Choose an answer

2-bromo-3-methylbutane

3-methyl-2-bromobutane

2-methyl-3-bromobutane

All of these

CFCs undergo homolytic fission by uv light in the stratosphere which radical could result from this irradiations of CHCICF₂Cl.

Choose an answer

CHF Cl C FCl

CH Cl CF₂Cl

CHF CF₂Cl

C FCl CF₂Cl

C₆H₆Cl₆can be obtained from

Choose an answer

HCl and Benzene

Cl₂and Benzene and AlCl₃

Cl₂and Benzene in diffused light

NaOCl and Benzene

Replacement of Cl of Chlorobenzene to give phenol requires drastic conditions but chlorine of 2, 4-Dinitrochlorobenzene is readily replaced because

Choose an answer

NO₂makes the electron rich ring at ortho and para positions

NO₂withdraws electrons at metaposition

NO₂donate electrons at m-position

NO₂withdraws electrons at ortho and para position

Choose an answer

Electronphilic substitution

Electrophilic addition

Free radical substitution

Nuclephilic substitution

By reaction Grignard's reagent with the HCHO we get

Choose an answer

1° - alcohol

2° - alcohol

3° - alcohol

All of these

Tertiary alkyl halides are practically inert to substitution by S_N2 mechanism because of

Choose an answer

Onsolubility

Instability

Inductive effect

Steric hindrance

When CO₂is made to react with ethyl megnesium iodine, followed by hydrolysis, the product formed is:

Choose an answer

Propane

Propanoic acid

Propanal

Propanol

When formaldehyde is added to Grignard reagent we get

Choose an answer

Aldehyde

Acetone

Primary alcohol

Secondary alcohol

Which responds to +ve iodoform test?

Choose an answer

Butanol-1

Butan-1-al

Butanol-2

2-pentanone

What is the total number of different chloroethanes of formula C₂H_6-nCl_npossible (n may be 1 to 6)

Choose an answer

6

8

9

10

1, 3-Dibromopropane reacts with metallic zinc to form

Choose an answer

Propene

Propane

Cyclopropane

Hexane

E₁mechanism is generally shown by

Choose an answer

1° - RX

2° - RX

3° - RX

None of these

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

Choose an answer

SO₂and HCI

SI₂and H₂O

HCI and H₂O

H₂S and HCI

Reduction of alkyl halides give

Choose an answer

Alkanes

Alkenes

Ketones

Ether

A reaction in which an atom or a group of atoms replaces an atom or a group of atoms in the molecule of a substance is known as

Choose an answer

Addition reaction

Condensation reaction

Elimination reaction

Substitution reaction

For which mechanisms, the first step involved is the same:

Choose an answer

E₁ and E₂

E₂and SN₂

E₂ and E₁

E1 and SN₁

In a primary alkyl halide, the halogen atom is attached to a carbon which is further attached to

Choose an answer

Only one carbon atom

Two carbon atoms

Three carbon atoms

one or no carbon atom

Alkyl halides react with lithium dialkyl copper reagents to give

Choose an answer

Alkenes

Alkyl copper halides

Alkanes

Alkenyl halides

The chloroform reacts with NaOH to give

Choose an answer

CH₃COONa

Sodium oxalate

CH₃OH

HCOONa

Choose an answer

Electrophilic addition

Electrophilic substitution

Free radical substitution

Nuclophilic addition

The reaction of an alkyl halide with RCOOAg produces

Choose an answer

Ester

Ether

Aldehyde

Ketone

More Classes

Other Links

ECAT Chemistry Chapter 21 Alkyl Halides Online Test MCQs With Answers

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer

Choose an answer