R4RIN – MCQs, Mock Tests | IIT JEE IIT JEE Organic Compounds Containing Halogens

Mistard gas is

1. Dichlorodiethyl sulphide
2. Dichlorodimethyl sulphide
3. Dichlorodiethyl ether
4. None of these.

✅ Correct Answer: 2

Westrosol is

1. Trichloroethene
2. 1 1 1-Trichloroethene
3. 1 1 2-Trichloroethene
4. Trichloromethanol.

✅ Correct Answer: 1

Iodoform s a ...... at room temperature.

1. Gas
2. Thick viscous liquid
3. Volatile liquid
4. Crystalline solid.

✅ Correct Answer: 4

Westorn is

1. 1 1 2 2-Tetrachloroethane
2. 1 1-Dichloropropanone
3. 1 3-Dichloropropanone
4. 1 2-dichloroethene.

✅ Correct Answer: 1

Chloral on treatment with aqueous NaOH produces?

1. Ethanal
2. Propanol
3. Chloroform
4. Chloroethanal.

✅ Correct Answer: 3

IUPAC name of Gammexane isHexachlorocyclohexaneNone of these

1. Hexachlorobenzene
2. Benzene hexachloride
3. 1 2 3 4 5 6-
4. None of these.

✅ Correct Answer: 3

When cholroform reacts with acetone the product is

1. Chloral
2. dichloroacetone
3. Chloropicrin
4. Chloretone.

✅ Correct Answer: 4

Which of the following compounds do not respond to silver nitrate test ?

1. Vinyl chloride
2. Allyl chloride
3. Chlorocyclohexane
4. Benzyl chloride.

✅ Correct Answer: 1

Which of the following statements are corrcet ?

1. Alkyl bromides are lighter than water
2. Tetrachloromethane is heavier than water
3. Alkyl chlorides undergo nucleophilic substitution more easily than alkyl bromides
4. Fluorobenzene can be prepared by Sandmeyers reaction.

✅ Correct Answer: 2

2-Chloro-2-methyl propane on reaction with aq. KOH gives X as the major product X is

1. 2-Butene
2. 2-Methyl-
3. 1-propene
4. 1-Butene

✅ Correct Answer: 4

2 2-Dichloropropane on alkaline hydrolysis gives

1. 2 2-Propanediol
2. Propanol
3. Propanone
4. Ethanal.

✅ Correct Answer: 2

When tert-butyl chloride is made to react with sodium methoxide the major product isDimethyl ether

1. Dimethyl ether
2. Di-tert butyl ether
3. Tert-Butyl methyl ether
4. Isobutylene.

✅ Correct Answer: 4

An alkyl halide may be converted tnto an alkene by

1. Addition
2. substitution
3. Elimination
4. None of these.

✅ Correct Answer: 3

2-Chloro-2methyl butane on reaction with alc. KOH gives X as the major product X is

1. 2-Methyl-1-butanol
2. 2-Methyl-1-butene
3. 2-Methyl-2-butene
4. 2-Methyl-2-butanol.

✅ Correct Answer: 3

The major product of reaction of alcoholic silver nitrite with ethyl bromide is

1. Ethane
2. Nitroethane
3. Ethyl nitrite
4. Ethyl alcohol.

✅ Correct Answer: 2

NBS is a specific reagent for

1. Nucleophilic substitution
2. Electrophilic substitution
3. Allylic substitution
4. Electrophilic addition.

✅ Correct Answer: 3

When chloroform is exposed to air and sunlight it givesCarbon tetrachloride

1. Mustard gas
2. Lewisite
3. Carbonyl chloride
4. None of these.

✅ Correct Answer: 3

Only two isomeric monochloro derivatives are possible for

1. n-Butane
2. 2 4-Dimethylpentane
3. Benzene
4. 2 4-Dimethylpentane.

✅ Correct Answer: 1

The major product of reaction of alcoholic silver nitrite with ehtyl bromide is

1. Ethane
2. Ethene
3. Nitroethane
4. Ethyl nitrite.

✅ Correct Answer: 3

Which of the following is not a promary alide?

1. Isobutyl bromide
2. Neo-Pentyl chloride
3. Isopentyl bromide
4. All are primary halides.

✅ Correct Answer: 4

DDT is formed form

1. Benzene and chlorobenzene
2. Chloral and chlorobenzene
3. Chloral and benzene
4. Chlorobenzene adn chlorine.

✅ Correct Answer: 2

Treatment of ammonia with excess ethyl choloride will yield

1. Triethyl amine
2. Diethyl amine
3. Volatile liquid
4. Tetraethylammonium chloride.

✅ Correct Answer: 4

Ethyl bromide reacts with Zn - Cu couple in the presence of ethyl alcohol to form

1. Butane
2. DEiethyl ether
3. Methane
4. Ethane.

✅ Correct Answer: 4

If chloroform is left open in the air in the presence of sunlight

1. Explosion takes place
2. Polymerization takes place
3. Poisonous gas phosgene is formed
4. No reaction takes place.

✅ Correct Answer: 3

Out of the following compounds which one will have zero dipole moment ?

1. Chloromethane
2. dichloromethane
3. Trichloromethane
4. None of these.

✅ Correct Answer: 4

Geminal dihalides on hydrolysis give

1. Ketomes
2. Aldehydes
3. Ketones and aldeehydes
4. Alcohols.

✅ Correct Answer: 3

Which of the following has the highest boiling point ?

1. 1-Chloropentane
2. 2-Chloropentane
3. 3-Chloropentane
4. All have equal boiling point.

✅ Correct Answer: 1

Dipole moment is shown by

1. 1 4-Dichorobenzene
2. cis-1 2-dichloroethylene
3. tans-1 2-dichloroethylene
4. Tetrachloromethane.

✅ Correct Answer: 2

Which of the following compounds can exhibit optical isomerism?trans-1 3-dichlorocyclobutane.

1. Chlorocyclopropane
2. cis-1 2-Dichlorocyclopropane
3. trans-12-Dichlorocyclopropane
4. None of these.

✅ Correct Answer: 3

A mixture of ethyl iodide and n-propyl iodide is subjected to Wurtz eraction. Which of the following compounds is not formed during the reaction ?

1. Butane
2. Propane
3. Pentane
4. Hexane.

✅ Correct Answer: 2

Which of the following alkyl halides can exhibit enantiomerism ?

1. n-Butyl chloride
2. iso-Butyl chloride
3. sec-Butyl chloride
4. tert-Butyl chloride.

✅ Correct Answer: 3

Ethylene chloride and ethylidene chloride are isomeric compounds. Identify the statement that is not applicable to both of them.

1. Both of them are dihalogen derivatives
2. Both of them give Beilstein test
3. Both of them react with alc. KOH and give same product
4. Both of them react with aqueous KOH and give same product.

✅ Correct Answer: 4

Which of the following halides would undergo nucleophilic substitution most readily?

1. 1-Chloro-1-butene
2. 2-Chloro-1-butene
3. 3-Chloro-1-butene
4. 4-Chloro-1-butene.

✅ Correct Answer: 3

2-Bromo-3 3-dimethylbutane on reaction with aqueous KOH yields ____________ as the major product. The missing item is

1. 2 3 3-Trimethyl-1-propanol
2. 2 2-Dimethyl-3-butanol
3. 2 3-Dimethyl-2-butanol
4. None of these.

✅ Correct Answer: 3

Chlorination of toluene in the presence of light and heat followed by treatment with aqueous NaOH gives

1. 0-Cresol
2. p-Cresol
3. 2 4-Dihydroxytoluene
4. Benzyl alcohol.

✅ Correct Answer: 4

Chlorobenzene can be prepared by reacting benzenediazonium chloride with

1. Hydrochloric acid
2. Cuprous chloride
3. Chlorine in presence of anhydrous aluminium chloride
4. Nitrous acid.

✅ Correct Answer: 2

Butaneitrite may be prepared by heating

1. Propyl alcohol with KCN
2. Butyl chloride with KCN
3. Butyl alcohol with KCN
4. Propyl chloride with KCN.

✅ Correct Answer: 4

Which of the following compounds will react with ethanolic KCN?

1. Chlorobenzene
2. Vinyl chloride
3. Allyl chloride
4. 4-Chlorotoluene.

✅ Correct Answer: 3

When chloroform reacts with benene in the presence of aluminium chloride the product formed isTriphenyl chloromethane

1. 1 1 1-Trichloroethane
2. Trichlorophenyl methane
3. Triphenyl methane
4. 4-Chlorotoluene.

✅ Correct Answer: 3

1-Phenyl-2-chloropropane when treated with alcoholic KOH gives ..... as the major product.3-Phenyl-1-propanol.

1. 1-Phenylpropene
2. 3-Phenylpropene
3. 1-Phenyl-2-propanol
4. None of these.

✅ Correct Answer: 1

Which of the following is most reactive towards nucleopholic substitution ?

1. Chlorobenzene
2. 2 4 6-Trinitrochlorobenzene
3. 2 4-Dimitrochlorobenzene
4. 2-Nitrochlorobenzene.

✅ Correct Answer: 2

Hunsdiecker reaction is used for preparation of alkyl chlorides and alkyl bromides starting from

1. Diazonium salts
2. Silver salt of carboxylic acids
3. Sodium aslt of caryoxylic acids
4. Alcohols.

✅ Correct Answer: 3

Carbylamine test is performed in alcoholic KOH by heating a mixture ofAn alkyl cyanide and a primary amine.

1. Chloroform and silver powder
2. Trihalogenated methane and a promary amine
3. An alkyl halide and a primary amine
4. None of these.

✅ Correct Answer: 2

Iodobenzene can be converted into diphenyl by

1. Wurtz reaction
2. Wurtz-Fittig reaction
3. Ullamann reaction
4. Frankland reaction.

✅ Correct Answer: 3

The reaction between a primary amine chloroform and a few drops of alcoholic KOH is known as

1. Franklands reaction
2. Cannizzaros reaction
3. Wurtz reaction
4. Carbylamine reaction.

✅ Correct Answer: 4

Which of the following halides is not a primary halide ?

1. iso-Pentyl chloride
2. neo-Pentyl chloride
3. iso-Butyl chloride
4. iso-Propyl chloride.

✅ Correct Answer: 4

Chlorobenzene reacts with Mg in dr ether to give a compound (A) which further reacts with ethanol to yield

1. Ethylbenzene
2. Phenol
3. Phenylemethyl ether
4. Benzene.

✅ Correct Answer: 4

The reaction of toluene with chlorine in the presence of ferric chloride gives mainlyBenzyl chloride

1. m-Chlorotoluene
2. Benzylchloride
3. o- and p-Chlorotoluene
4. None of these.

✅ Correct Answer: 3