Free MCQs & Online Quiz Practice for Exams

Q: Which of the following will not affect the SN1 mechanism?

A) Nature of solvent

B) Carbocation stability

C) Nature of nucleophile

D) None of these

Q: Ethylmagnesium bromide on treatment with CO₂ and further hydrolysis gives:

A) Acetic acid

B) Propanoic acid

C) Butanoic acid

D) Benzoic acid

Q: Geometry of methyl chloride is:

A) Trigonal planar

B) Octahedral

C) Square planar

D) Tetrahedral

Q: The crowding around alpha carbon in alkyl halides favours:

A) Elimination reaction

B) Substitution reaction

C) Addition reaction

D) All of these

Q: Isopropyl alcohol is a type of:

A) Primary alcohol

B) Secondary alcohol

C) Tertiary alcohol

D) None of these

Q: Which of the following has the highest boiling point?

A) Dimethyl ether

B) Isopropyl alcohol

C) n-Propyl alcohol

D) ISOPROPYL ALCOHOL (DUPLICATE)

Q: Trimethylene glycol is a:

A) Vic-diol

B) Gem-diol

C) Triol

D) NONE OF THESE

Q: The final product of oxidative cleavage of ethylene glycol with periodic acid is:

A) Formaldehyde

B) Acetaldehyde

C) Formic acid

D) MIXTURE OF FORMALDEHYDE AND ACETALDEHYDE

Q: Oxygen carrying positive charge and bonded to three other atoms is called:

A) Oxide ion

B) Oxonium ion

C) Carbocation

D) carnbanion

Q: Which of the proper reagent is used for oxidation of a primary alcohol to aldehyde?

A) Acidified dichromate

B) Acidified chromate

C) Acidified permanganate

D) PCC

Q: Which one is an aromatic alcohol?

A) Methyl alcohol

B) Ethyl alcohol

C) Benzyl alcohol

D) P-Cresol

Q: Compound which is added to natural gas to make gas leakage detectable?

A) Phenol

B) Ethanethiol

C) Methanol

D) Hydrogen sulphide

Q: Which of the following is more reactive toward Lucas reagent?

A) Methanol

B) Ethanol

C) 2-Methyl-2-propanol

D) 2-BUTANOL

Q: Ethoxyethane when treated with conc. H₂SO₄ produces:

A) Carbocation

B) Oxonium ion

C) Carbanion

D) OXALATE ION

Q: Lucas reagent is:

A) Zn-Hg/HCl

B) ZnCl₂/HCl

C) Zn + H₂O

D) NOT FOR SANE (GARBLED)

Q: The reaction of an alcohol with sodium produces:

A) Ethane

B) Hydrogen

C) Alkoxide

D) ALKANE

Q: Benzene diazonium salt is a reactive salt and upon hydrolysis yields:

A) Phenol

B) Diazobenzene

C) Azo compound

D) ANILINE

Q: Oxidation of secondary alcohol gives:

A) Carboxylic acid

B) Ether

C) Aldehyde

D) KETONE

Q: The appearance of cloudiness in the Lucas test for alcohol is due to formation of:

A) Alkyl chloride

B) Acid chlorides

C) Aldehydes

D) KETONES

Q: The carbon of the carbonyl group is:

A) sp³-hybridized

B) sp²-hybridized

C) sp-hybridized

D) dsp²-hybridized