Please refer to Chapter 13 Amines MCQ Class 12 Chemistry with answers below. These multiple-choice questions have been prepared based on the latest NCERT book for Class 12 Chemistry. Students should refer to MCQ Questions for Class 12 Chemistry with Answers to score more marks in Grade 12 Chemistry exams. Students should read the chapter Amines and then attempt the following objective questions.

MCQ Questions Class 12 Chemistry Chapter 13 Amines

Amines MCQ Class 12 Chemistry provided below covers all important topics given in this chapter. These MCQs will help you to properly prepare for exams.

Question. Intermediates formed during reaction of RCONH₂ with Br₂ and KOH are
(a) RCONHBr and RNCO
(b) RNHCOBr and RNCO
(c) RNHBr and RCONHBr
(d) RCONBr₂

Question. Propionamide on Hofmann degradation gives –
(a) methyl amine
(b) ethyl amine
(c) propyl amine
(d) ethyl cyanide

Question. Ethyl amine can be obtained by the
(a) Action of NH₃ on ethyl iodide.
(b) Action of NH₃ on ethyl alcohol.
(c) Both (a) and (b)
(d) Neither (a) nor (b)

Question. The best reagent for converting 2 – phenylpropanamide into 2-phenylpropanamine is ___________.
(a) excess H₂
(b) Br₂in aqueous NaOH
(c) iodine in the presence of red phosphorus
(d) LiAlH₄in ether

Question. A secondary amine is
(a) a compound with two carbon atoms and an –NH₂ group.
(b) a compound containing two –NH₂ groups.
(c) a compound in which hydrogens of NH₃ have been replaced by two alkyl groups.
(d) a compound with an –NH₂ group on carbon atom in number two position.

Question. The total number of electrons around the nitrogen atom in amines are
(a) 8
(b) 7
(c) 4
(d) 3

Question. Secondary amines could be prepared by
(a) reduction of nitriles
(b) Hofmann bromamide reaction
(c) reduction of amides
(d) reduction of isonitriles

Question. Gabriel’s phthalimide synthesis is used for the preparation of
(a) Primary aromatic amines
(b) Secondary amines
(c) Primary aliphatic amines
(d) Tertiary amines

Question. The number of primary amines of formula C₄H₁₁N is :
(a) 1
(b) 3
(c) 4
(d) 2

Question. The correct IUPAC name for CH₂ = CHCH₂NHCH₃ is
(a) Allylmethylamine
(b) 2-amino-4-pentene
(c) 4-aminopent-1-ene
(d) N-methylprop-2-en-1-amine

Question. Amines play an important role in the survival of life. Naturally they are found in
(a) proteins
(b) vitamins
(c) alkaloids
(d) All of these

Question. An alkyl or benzyl halide on reaction with an ethanolic solution of ammonia undergoes
(a) electrophilic substitution reaction
(b) nucleophilic substitution reaction.
(c) free radical mechanism.
(d) nucleophilic addition reaction.

Question. Amines have
(a) Garlic odour
(b) Fishy odour
(c) Jasmine odour
(d) Bitter almonds odour

Question. The basic character of amines is due to
(a) presence of nitrogen atom
(b) lone pair of electrons on nitrogen atom
(c) tetrahedral structure
(d) high electronegativity of nitrogen

Question. Aliphatic amines are…..basic than NH₃ but aromatic amines are……basic than NH₃.
(a) more, less
(b) less, more
(c) both (a) and (b)
(d) None of these

Question. Treatment of ammonia with excess of ethyl iodide will yield
(a) diethylamine
(b) ethylamine
(c) triethylamine
(d) tetraethylammonium iodide

Question. Substitution of one alkyl group by replacing hydrogen of primary amines
(a) increases the base strength
(b) decreases the base strength
(c) remains the same
(d) None of the above

Question. Which of the following is not characteristic of amines?
(a) They smell like ammonia
(b) They are inflammable in air
(c) They show the property of hydrogen bonding
(d) They are amphoteric in nature

Question. High basicity of Me₂NH relative to Me₃N is attributed to:
(a) effect of solvent
(b) inductive effect of Me
(c) shape of Me₂NH
(d) shape of Me₃N

Question. Which of the following statement is correct ?
(a) Ammonia is more basic than methylamine.
(b) Methylamine is more basic than ammonia.
(c) Dimethylamine is less basic than methylamine.
(d) Dimethylamine is less basic than trimethylamine.

Question. Which of the following factors affect the basic strength of amine?
(i) Inductive effect
(ii) Steric hinderance
(iii) Solvation effect
(iv) Solubility in organic solvents.
(a) (i) and (iv)
(b) (i), (ii) and (iii)
(c) (ii) and (iii)
(d) (ii) and (iv)

Question. Which of the following methods of preparation of amines will give same number of carbon atoms in the chain of amines as in the reactant?
(a) Reaction of nitrite with LiAlH₄.
(b) Reaction of amide with LiAlH₄ followed by treatment with water.
(c) Heating alkylhalide with potassium salt of phthalimide followed by hydrolysis.
(d) Treatment of amide with bromine in aquesous solution of sodium hydroxide.

Question. When benzenediazonium chloride in hydrochloric acid reacts with cuprous chloride, then chlorobenzene is formed. The reaction is called
(a) Gattermann reaction
(b) Perkin reaction
(c) Etard reaction
(d) Sandmeyer reaction

Question. The reduction of nitro compounds is most preferred in the presence of
(a) Pd/H₂ in ethanol
(b) Sn + HCl
(c) finely divided Ni
(d) iron scrap and HCl.

Question. Aniline is less soluble in water than ethyl amine due to
(a) resonance stablization of benzene ring
(b) resonance stabilization of anilium ion
(c) more hydrophobic nature of C₆H₅ group than C₂H₅ group
(d) more hydrophobic nature of C₆H₅ group than C₂H₅ group

Question. Amines behave as
(a) lewis acids
(b) lewis bases
(c) aprotic acids
(d) amphoteric compounds

Question. Which statement is not true among the following?
(a) Amines are bases
(b) They turn red litmus blue
(c) Trimethyl amine is less basic than dimethyl amine
(d) Amines yield alcohols on aqueous hydrolysis.

Question. An organic amino compound reacts with aqueous nitrous acid at low temperature to produce an oily nitrosoamine. The compound is
(a) CH₃NH₂
(b) CH₃CH₂NH₂
(c) CH₃CH₂NHCH₂CH₃
(d) (CH₃CH₂)₃N

Question. Ethylamine reacts with HNO₂ giving :
(a) C₂H₅OH
(b) C₂H₅NO₂
(c) NH₃
(d) C₂H₆

Question. Hinsberg reagent is
(a) C₆H₅SO₃H
(b) C₆H₅NO
(c) C₆H₅SO₂Cl
(d) C₆H₅N₂Cl

Question. Which of the following reagent can be used to convert benzenediazonium chloride into benzene?
(a) CH₃OH
(b) H₃PO₂
(c) Br₂–H₂O
(d) LiAlH₄

Question. Aniline is used
(a) in crimping of wool
(b) in dyeing industry
(c) in making of glue
(d) in fast drying vanish

Question. Which of the following statements about primary amines is ‘False’ ?
(a) Alkyl amines are stronger bases than aryl amines
(b) Alkyl amines react with nitrous acid to produce alcohols
(c) Aryl amines react with nitrous acid to produce phenols
(d) Alkyl amines are stronger bases than ammonia

Question. Reaction of aniline with benzaldehyde is
(a) substitution
(b) addition
(c) condensation
(d) polymerization

Question. Hinsberg’s method to separate amines is based on the use of
(a) benzene sulphonyl chloride
(b) benzene sulphonic acid
(c) ethyl oxalate
(d) acetyl chloride

Question. Mark the correct statement
(a) Methylamine is slightly acidic
(b) Methylamine is less basic than ammonia
(c) Methylamine is a stronger base than ammonia
(d) Methylamine forms salts with alkalies.

Question. Which of the following cannot be prepared by Sandmeyer’s reaction?
(i) Chlorobenzene
(ii) Bromobenzene
(iii) Iodobenzene
(iv) Fluorobenzene
(a) (i) and (ii)
(b) (ii) and (iii)
(c) (iii) and (iv)
(d) (i) and (iv)

Question. Azo dye is prepared by the coupling of phenol and
(a) diazonium chloride
(b) o-nitroaniline
(c) benzoic acid
(d) chlorobenzene

Question. For carbylamine reaction, we need hot alcoholic KOH and
(a) any primary amine and chloroform
(b) chloroform and silver powder
(c) a primary amine and an alkyl halide
(d) a monoalkylamine and trichloromethane.

Question. Which of the following statements is not correct regarding aniline?
(a) It is less basic than ethylamine
(b) It can be steam-distilled
(c) It reacts with sodium to give hydrogen
(d) It is soluble in water

Question. Aniline and other arylamines are usually colourless but get coloured on storage due to___________.
(a) hydrolysis
(b) dehydration
(c) reduction
(d) atmospheric oxidation

Question. When phenol and benzene diazonium chloride are coupled, the main product is :
(a) aniline
(b) p-hydroxyazobenzene
(c) azobenzene
(d) chlorobenzene

Question. The amine that does not react with acetyl chloride is
(a) CH₃NH₂
(b) (CH₃)₂NH
(c) (CH₃)₃N
(d) None of these

Question. Primary amines can be distinguished from secondary and tertiary amines by reacting with
(a) Chloroform and alcoholic KOH
(b) Methyl iodide
(c) Chloroform alone
(d) Zinc dust

Question. Which of the following is not correct ?
(a) Ethyl amine and aniline both have – NH₂ group
(b) Ethyl amine and aniline dissolve in HCl
(c) Ethyl amine and aniline both react with CHCl₃ and KOH to form unpleasant smelling compound
(d) Ethyl amine and aniline both react with HNO₂ in cold to give hydroxy compounds

Question. In the diazotization of arylamines with sodium nitrite and hydrochloric acid, an excess of hydrochloric acid is used primarily to
(a) Supress the concentration of free aniline available for coupling
(b) Supress hydrolysis of phenol
(c) Ensure a stoichiometric amount of nitrous acid
(d) Neutralise the base liberated

Question. Which of the following compound will not undergo azo coupling reaction with benzene diazonium chloride.
(a) Aniline
(b) Phenol
(c) Anisole
(d) Nitrobenzene

Question. N– ethyl benzene sulphonyl amide is strongly acidic and soluble in alkali due to presence of
(a) strong electron donating sulphonyl group.
(b) strong electron withdrawing sulphonyl group.
(c) weak electron donating sulphonyl group.
(d) weak electron withdrawing sulphonyl group.

Question. Diazonium salt is obtained when aniline reacts with :
(a) cold NaOH
(b) NaNO₂ and HCl (0–5°C)
(c) SnCl₂ at 10°C
(d) N₂O at (0 – 5°C)

Question. Acetamide is treated with the following reagents separately. Which one of these would yield methylamine?
(a) NaOH – Br₂
(b) Sodalime
(c) Hot conc. H₂SO₄
(d) PCl₅

We hope you liked the above Amines MCQ Class 12 Chemistry. In case you have any questions please put them in the comments box below and our teachers will provide you a response.