MCQ Chapter 13 Amines Class 12 Chemistry

Please refer to Amines MCQ Questions Class 12 Chemistry below. These MCQ questions for Class 12 Chemistry with answers have been designed as per the latest NCERT, CBSE books and syllabus issued for the current academic year. These objective questions for Amines will help you to prepare for the exams and get more marks.

Amines MCQ Questions Class 12 Chemistry

Please see solved MCQ Questions for Amines in Class 12 Chemistry. All questions and answers have been prepared by expert faculty of standard 12 based on latest examination guidelines.

Question. The molecular formula ofbenzonitrile is
(a) C₆H₅CN
(b) C₆H₅NC
(c) C₆H₅CNO
(d) C₆H₅NCO     

Question. The reduction of which of the following compound would yield secondary amine? 
(a) Alkyl nittile
(b) Carbylamine
(c) Ptimary amine
(d) Secondary nitro compound       

Question. Alkyl cyanides undergo Stephen reduction to produce
(a) aldehyde 
(b) secondary amine
(c) primary amine
(d) amide     

Question. Identify C in the following reaction,

(a) Benzamide
(c) Chlorobenzene
(b) Benzoic acid
(d) Aniline   

Question. Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so obtained is diazotised and then heated with cuprous bromide. The reaction mixture so formed contains.
(a) mixture of o and p-bromotoluenes
(b) mixture of o and p -dibromobenzenes
(c) mixture of o and p-bromoanilines
(d) mixture of o and m-bromotoluenes     

Question. Nitrobenzene is reduced by Zn and alcoholic potash mixture to get 
(a) C₆H₅—NH₂
(b) C₆H₅—NH—NH—C₆H₅
(c) C₆H₅—N—N—C₆H₅
(d) C₆H₅—NH—CO—C₆H₅     

Question. The structure of the compound formed, when nitrobenzene is reduced by lithium aluminium hydride (LiAIH₄ ) is

Question. Nitration ofnitrobenzene at 125°C with mixed acids gives
(a) meta-dinitrobenzene
(b) ortho-dinitrobenzene
(c) para-dinitrobenzene
(d) 1, 3, 5-trinitrobenzene     

Question. Which of the following compounds reacts slower than benzene in electrophiJic substitution? 

Question. In alkyl cyanide alkyl group attached with 
(a) C of CN group
(b) N of CN group
(c) Either C or N of CN group
(d) Both C and N of CN group     

Question. Reduction of nitrobenzene in the presence of Zn /NH₄ Cl gives 
(a) azobenzene
(b) hydrazobenzene
(c) N-phenyl hydroxylamine
(d) aniline     

Question. C₆H₅NO₂ →^{Sn/ HCI}  C₆H₅ X, ‘X’ is identified as 
(a) NO
(b) -NH₂
(c) NHOH
(d) None of the above   

Question. Which of the following compounds is soluble in benzene but almost insoluble in water? 
(a) C₂H₅OH
(b) CH₃CO₂H
(c) CH₃CHO
(d) C₆H₅NO₂       

Question. The IUP AC name of the following compound is 

(a) 1, 2, 3-tricyanopropane
(b) propane- 1, 2, 3-trinitrile
(c) 3-cyanopentane- 1, 5-dinitrile
(d) 1, 3, 5-pentanetrinitrile     

Question. Which of the following reactions can produce aniline as main product?
(a) C₆H₅NO₂ 
(a) C₆H₅NO₂ + Zn / KOH
(b) C₆H₅NO₂ + Zn / NH₄Cl
(c) C₆H₅NO₂ + LiAIH₄
(d) C₆H₅NO₂ + Zn / HCl     

Question. In the reaction shown below, the major product(s) formed is/are 

Question. In the reaction,

X is
(a) SiC
(b) H₂SO₄
(c) KMnO₄
(d) Fe / HCI     

Question. Which of the following is not a nitro derivative?

Question. The compound with foul odour among the following is

Question. Which is not the property of ethanenitrile (CH₃CN)?
(a) Undergoes acidic hydrolysis to give carboxylic acid
(b) Undergoes alkaline hydrolysis to give salt of carboxylic acid
(c) It tautometises to give methyl isocyanide
(d) It gives carbylamine reaction with chloroform       

Question. Final product of hydrolysed alkyl cyanide is 
(a) RCOOH
(b) RCONH₂
(c) R—C= NH
          l
         OH
(d) R—C= N^⊕H     

Question. Identify A and Bin the reaction given below. 

(a) acetic acid, methanol
(b) acetone, methane
(c) ethanoic acid, ethane
(d) ethanoic acid, methane     

Question. Benzamide can be converted into benzonitrile with
(a) H₃O⁺
(b) OH^–/ H₂O 
(c) KCN
(d) P₂O₅     

Question. Aliphatic nitrites are prepared by the treatment of alkyl halides with 
(a) sodium cyanide
(b) sodium isocyanide
(c) sodium isocyanate
(d) cyanamide   

Question. How many sigma and pi-bonds are there in the molecule of dicyanoethene (CN—CH=CH—CN)?
(a) 3 sigma and 3 pi
(b) 5 sigma and 2 pi
(c) 7 sigma and 5 pi
(d) 2 sigma and 3 pi   

Question. 

Question. Which compound is known as alkyl carbylamine?
(a) R · CN
(b) R · NC 
(c) Ar · CN
(d) Ar · NC     

Question. Ethyl isocyanide on hydrolysis in acidic medium generates
(a) ethylamine salt and methanoic acid 
(b) propanoic acid and ammonium salt
(c) ethanoic acid and ammonium salt
(d) methylamine salt and ethanoic acid       

Question. Choose the inco1Tect statement. 
(a) Primary amines show intermolecular hydrogen bonds
(b) tert-butylamine is a primary amine
(c) Tertiary amines do not show intermolecular hydrogen bonds
(d) Iso-propylamine is a secondary amine
(e) Amines have lower boiling points as compared to those of alcohols of comparable molecular mass       

Question. Reduction of alkyl nitriles, produces 
(a) secondary amine
(b) primary amine
(c) tertiary amine
(d) amide      

Question. Which one does not liberate NH₃ when undergoes hydrolysis?
(a) AcetaniIide
(c) Acetamide
(b) Acetonittile
(d) Phenyl isocyanide     

Question. n-butylamine (I), diethylamine (II) and N, N-dimethylethylamine (III) have the same molar mass.
The increasing order of their boiling point is
(a) III < II < I
(b) I < II < III
(c) II < III < I
(d) II < I < III
(e) III < I < II       

Question. In the reaction,
CH₃CN + 2H →_SnCI2^HCI X →^{Boiling H₂O} Y
The term Y is 
(a) acetone
(b) ethanamine
(c) acetaldehyde
(d) dimethyl amine     

Question. Methyl cyanide gives on hydrolysis 
(a) methyl amine
(b) acetic acid
(c) formic acid
(d) ethyl amine   

Question. Compare boiling point of isomeric alkyl amines.
(a) 1° > 2° > 3°
(b) 1° > 2° < 3°
(c) 1° < 2° < 3°
(d) 1° < 2° > 3°       

Question. Which one of the following does not have sp² hybridised carbon?
(a) Acetone
(b) Acetic acid
(c) Acetonitrile
(d) Acetamide     

Question. Secondary nitro alkanes can be converted into ketones by  using Y. Identify Y from the following. 

(a) Aqueous HCl
(b) Aqueous NaOH
(c) KMnO₄
(d) CO       

Question. Acetonitrile on reduction gives 
(a) propanamine
(b) methanamine
(c) ethanamine
(d) None of these     

Question. KCN reacts readily to give a cyanide with 
(a) ethyl alcohol
(b) ethyl bromide
(c) bromobenzene
(d) chlorobenzene     

Question. Amongst the following, the most basic compound is
(a) benzylamine
(b) aniline 
(c) acetanilide
(d) p-nitroaniline     

Question. What is Zin the following reaction sequence?

(a) C₆H₅CO₂H
(b) C₆H₅OH
(c) C₆H₅CHO
(d) C₆H₆   

Question. Aniline+ Excess of Br² →?
(a) Tribromo benzene
(b) m -bromo aniline
(c) 3, 4, 5-tribromo aniline
(d) 2, 4, 6-tribromo aniline     

Question. The major product of the following reaction is

Question. C₆H₅NH₂ →_180°C^H₂SO₄  NH₂C₆H₄ (SO₃H)
                                                    para-fonn
The true statement about the product is 
(a) it does not exist as Zwitter ion
(b) it does not act as inner salt
(c) —SO₃ diminishes the basic character of —NH₂
(d) —NH₂ displays a powerful basic character     

Question. 

The final product C in the above reaction is 

Question. Considering the basic strength of amines in aqueous solution, which one has the smallest pK b value?
(a) (CH₃)₂ NH
(b) CH₃NH₂ 
(c) (CH₃)₃N
(d) C₆H₅NH₂       

Question. Arrange the following in correct order of basicity.

(a) I > II > III
(b) IIl > II > I
(c) II > I > III
(d) I > III > II     

Question. Which of the following processes does not yield a primary amine? 
(a) CH₃COCH₃ + NH₃ + H₂ →^Ni
(b) CH₃CH₂CN + H₂ →^Ni_140°C
(c) CH₃CHO + H₂NOH →^{Na,C₂H₅OH}
(d) CH₃CHO + N₂CH₂ →^NaBH₄     

Question. N-methyl aniline on reaction with nitrous acid gives
(a) N-nitroso-N-methylaniline 
(b) p-nitroso-N-methylaniline
(c) p-nitro-N-methylaniline
(d) N-nitro-N-methylaniline     

Question. When aniline reacts oil of bitter almonds, condensation takes place and benzyl derivatives are formed. These are known as 
(a) Millon’s base
(b) Scruff’s reagent
(c) Benedict reagent
(d) Scruff’s base       

Question. An aromatic compound A (C₇H₉N) on reacting with NaNO₂ /HCl at 0°C forms benzyl alcohol and nitrogen gas. The number of isomers possible for the compound A is 
(a) 5
(b) 7
(c) 3
(d) 6       

Question. An amine C₃H₉N reacts with benzene sulphonyl chloride to form a white precipitate which is insoluble in aq. NaOH. The amine is 

Question. Aromatic primary amines can be distinguished from aliphatic primary amines by
(a) Tollen’s test
(b) action on red litmus paper
(c) azo dye test
(d) action with dil. HCI       

Question. Which one of the following compounds will dissolve in an alkali solution after it has undergo reaction with Hinsberg’s reagent?
(a) CH₃NH₂
(b) (CH₃)₃ N
(c) (C₂H₅)₂NH
(d) C₆H₅NHC₆H₅   

Question. An organic compoundA having molecular formula C₂H₃N on reduction gave another compound B, upon treatment with nitrous acid B gave ethyl alcohol. On warming with chloroform and alcoholic KOH, it formed an offensive smelling compound C. The compound C is 
(a) CH₃CH₂NH₂
(b) CH₃CH₂N=C
(c) CH₃C= N
(d) CH₃CH₂ ·OH     

Question. The correct order of basic strength in aqueous solution is
(a) (CH₃)₂NH > CH₃NH₂ > (CH₃)₃N
(b) (CH₃)₃N > (CH₃)₂NH > CH₃NH₂
(c) CH3NH2 > (CH₃)₃N > (CH₃)₂NH
(d) (CH₃)₃N > CH₃NH₂ > (CH₃)₂NH       

Question. Amongst the compounds given, the one that would form a brilliant coloured dye on treatment with NaNO₂ in dil.HCI followed by addition to an alkaline solution of β-naphthol is 

Question. What is IUP AC name of iso-propylamine? 
(a) Propan-2-amine
(b) Ethanamine
(c) 2-aminotoluene
(d) Propan-1-amine     

Question. Acetonitriles on hydrolysis produce which of the following? 
(a) Amine
(b) Acid
(c) Amides
(d) Carbonyl compounds       

Question. Unpleasant smell of carbylamine is obtained when chloroform and alcoholic KOH are heated with 
(a) any aliphatic amine
(b) any amine
(c) any primary amine  
(d) any aromatic amine   

Question. The main product of the reaction of CH₃CONH₂ with Br₂ in aqueous potassium hydroxide medium is 
(a) CH₃—CH₂—NH₂
(b) CH₃Br
(c) CH₃CONHBr
(d) CH₃NH₂       

Question. In the reaction, R—C= N + 4 (H)→^x RCH₂NH₂ X can be
(a) LiAIH₄
(b) H₂SO₄
(c) Ni
(d) 2KBr