Haloalkane Quiz » Chemistry-Papers

The alkyl halide that can not give a white precipitate with an alcoholic AgNO3 solution is:

Allyl chloride

Vinyl chloride

Ethyl chloride

Which reagent cannot be used to prepare an alkyl halide from an alcohol?

HCl + ZnCl2

SOCl2

NaCl

A strong solution of alcoholic alkali will preferentially promote alkyl halide into an alkene by -

Addition

Substitution

Elimination

Chlorobenzene is -

Less reactive than benzyl chloride

As reactive as methyl chloride

More reactive than ethyl bromide

Ethylidene chloride is a/an______.

gem-dihalide

vic-dihalide

vinylic halide

The ease of dehydrohalogenation of alkyl halides with alcoholic KOH is:

3∘ > 2∘ > 1∘

3∘ < 2∘ < 1∘

None of these

SN-2 reaction will be fastest in:

CH3-Cl

CH3CH2-Cl

CH3-Br

When an alkyl halide reacts with an alkoxide, the product is-

Alcohol

Ether

Ester

The Reagent used in the gattermann reaction for the preparation of aryl halide

HNO2

Cu/HCl

CuCl/HCl

Which reaction is termed as Darzen's Reaction--

ROH + HCl

ROH + PCl3

ROH + SOCl2

When ethyl bromide is treated with moist Ag2O the product is -

Ethanol

Ethoxy ethane

Ethyl ether

The reaction of silver carboxylates with bromine dissolved in carbon tetrachloride is called -

Borodine reaction

Borodine - Hunsdiecker reaction

Hofmann reaction

Which chloride is the most reactive towards aqueous NaOH in -

Benzyl chloride

Methyl chloride

Chlorobenzene

The reactivity order of alkyl halides depends upon:

Nature of halogen atom only

Nature of both alkyl group and a halogen atom

Nature of alkyl group only

C2H5Cl on heating with alcoholic KOH will produce

C2H5-OH

C2H4

C2H2

In SN 1 reaction, the first step involves the formation of -

Carbanion

Free radical

Carbocation

Which of the following statement is correct -

Decreasing order of density of alkyl halides is RI > RBr > RCI > RF

All are correct

Among isomeric alkyl halides the decrease in boiling point 1º > 2º > 3º

The stability order of alkyl halides is RF > RCl > RBr >RI

Decreasing order of reactivity of HX in the reaction ROH + HX  RX + H2O--------

HBr > HCl > HI > HF

HI > HBr > HCl > HF

HF > HBr > HCl > Hl

Which of the following is an example of vic-dihalide?

1,2 -dichloroethane

Ethylidene chloride

1'1, -dichloroethane

Fluorobenzene is prepared by treating benzene diazonium chloride with fluoroboric acid and heating the product obtained. This reaction is known as:

Sandmeyer reaction

Schiemann reaction

Gattermann reaction

Chlorobenzene can be obtained from benzene diazonium chloride by-

Gattermann's reaction

Wurtz reaction

Fittig reaction.

Benzene reacts with methyl chloride in the presence of anhydrous AlCl3 to give

methylbenzene

No reaction

n-Propylbenzene

What would be the major product when Ethyl bromide reacts with silver nitrite

Nitroethane

Ethyl nitrite

Ethane

For SN-1 reaction, preferred solvent will be -

Benzene

Water

Toluene

C2H5Cl + AgF ------- C2H5 F + AgCl The above reaction is called -

Hunsdiecker

Swart Rxn

Wurtz

Which would be least reactive towards bromine?

Anisole

Chlorobenzene

Nitrobenzene

An alkyl halide is insoluble in water because-

Alkyl halide does not form hydrogen bond with water