Question # 1

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

On warming with silver powder,chloroform is converted into

Choose an answer

Acetylene

Hexachloroethane

1,1,2,2-tetrachloroethane

ethylene

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

Choose an answer

Primary alkyl halide

Secondary alkyl halide

Tertiary alkyl halide

None of these

Among the following the most reactive towards alcoholic KOH is

Choose an answer

CH₂= CHBr

CH₃COCH₂CH₂Br

CH₃CH₂Br

CH₃CH₂CH₂Br

What happens when CCl₄is treated with AgNO₃solution?

Choose an answer

NO₂will be evolved

A white ppt. of AgCl will form

CCl₄will dissolve in AgNO₃solution

Nothing will happen

Choose an answer

NH₃ HCl

KCN in C₂H₅OH NaOH

KCN in C₂H₅OH HCl

HCN NaOH

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

Choose an answer

Wurtz reaction

Frankland's reaction

Cannizaro reaction

Kalobe's reaction

To get DDT, chlorobenzene has to react with one of the following compound in the presence of conc.H₂SO₄

Choose an answer

Trichloroethane

Dichloroacetone

Dichloroacetaldehyde

Trichloroacetealdehyde

Carbon atom holding halogen in aryl halides is

Choose an answer

sp²-hybridesed

sp³-hybridesed

sp-hybridesed

sp³d-hybridesed

Dehydrohalogenation of alkyl halides produces

Choose an answer

Alcohol

Alkane

Alkene

Alkyne

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

Choose an answer

An isocyanide

An aldehyde

A cyanide

An alcohol

Grignard's reagent on treatment with carbonyl compounds yield

Choose an answer

Pheonol

Alcohol

Alkane

None of these

The rate of E₁reaction depends upon:

Choose an answer

The concentration of substrate

The concentration of nucleophile

The concentration of substrate as well as nucleophile

None of these

Hydrolysis of Grignard's reagent gives:

Choose an answer

Alkane

Alkyl

Halide

Alcohol

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

Choose an answer

Propane

Ethane

Iso-butane

N-butane

Alkyl halides ae considered to be very reactive compounds towards nucleophiles because

Choose an answer

They have an electrophilic carbon

They have an electrophilic carbon and a good leaving group

They have an electrophilic carbon and a bad leaving group

They have a nucleophilic carbon and a good leaving group

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

Choose an answer

Condensation

Electrophilic substitution

Free radical substitution

Nucleophilic substitution

The general formula of alkyl halides is

Choose an answer

C_nH_2nX

C_nH_2n-1X

C_nH_2n+1X

C_nH_2n-2X

Which represents nucleophilic aromatic substitution reaction?

Choose an answer

Reaction of benzene with Cl₂in sunlight

Benzyl bromide hydrolysis with water

Reaction of NaOH with dintrofluoro benzene

Sulphonation of benzene

If ketone reacts with Grignard's reagent, it also produces alcohol, But it will be a

Choose an answer

primary alcohol

Secondary alcohol

Tertiary alcohol

Aromatic alcohol

2-Bromopentane is heated with potassium ethoxide in ethanol . The major product obtained is

Choose an answer

2-Ethoxypentane

Pent-1-ene

cis-Pent-2-ene

trans-Pent-2-ene

Which one of the following is not a nucleophile

Choose an answer

H₂O

H₂S

BF₃

NH₃

Ethyl chloride on treatment with aqueous alkali gives

Choose an answer

Ethane

Ethene

Ethanal

Ethanol

Choose an answer

Electrophilic substitution

Free radical reduction

Isomerisation

Nucleophilic substitution

Which of the followings is not a nulceophile

Choose an answer

OH^-

NH₃

C₂H₅O^-

Br₂

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

Reduction of alkyl halides give

Choose an answer

Alkanes

Alkenes

Ketones

Ether

Halogens on treating with silver salts of acids give

Choose an answer

Alcohol

Ester

Phenol

Alkyl halide

Reaction of Griganard's reagent with CO₂gives:

Choose an answer

Aldehyde

Pri-alcohol

Sec-alcohal

Carboxylic acid

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