NEET Chemistry Chapter Wise Mock Test – Organic Compounds Containing Nitrogen

NEET Chemistry Chapter Wise Mock Test – Organic Compounds Containing Nitrogen

Question 1.
Acetonoxime on catalytic hydrogenation gives
(a) 1-propanamine
(b) Isopropyiamine
(c) ethanamine
(d) ethylmethyl amine

Question 2.
The end product in the following reaction is

(a) ethyl cyanide
(b) ethyl amine
(c) methyl amine
(d) acetamide

Question 3.

In the above sequence. A and C are
I. methanal, methyl amine
II. acetone, ethanamine
III. ethanal, dimethyl amine .
IV. acetaldehyde, ethylamine
(a) Only II
(b) Only IV
(c) Only I
(d) Only III

Question 4.
In the reaction of (s)-2-phenyl propanamide with NaOBr/H₂O to give 1-phenylethylamine,
(a) there is retention of configuration
(b) there is inversion of configuration
(c) a mixture of two products is obtained
(d) there is no reaction

Question 5.
Which of the following reactions is given by only primary amines?
(a) Reaction with HONO
(b) Reaction with CHCl₃ and alcoholic KOH
(c) Reaction with acetyl chloride ‘
(d) Reaction with Grignard’s reagent

Question 6.
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 obtained 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 7.
Hofmann bromamide degradation reaction is shown by
(a) ArNH₂
(b) ArCONH₂
(c) ArNO₂
(d) ArCH₂NH₂

Question 8.
Which of the following reagents would not be a good choice for reducing an aryl nitro compound to an amine?
(a) H₂ (excess)/Pt
(b) LiAlH₄ in ether
(c) Fe and HCl
(d) Sn and HCl

Question 9.
In order to prepare a 1° amine from an alkyl halide with simultaneous addition of one CH₂ group in the carbon chain, the reagent used as source of nitrogen is
(a) sodium amide, NaNH₂
(b) sodium azide, NaN₃
(c) potassium cyanide, KCN
(d) potassium phthalimide, C₆H₄(CO)₂N^–K⁺

Question 10.
IUPAC name of the following compound is

(a) N,N-dimethyl cyclopropane carboxamide
(b) N-methylcyclo propanamide
(c) cyclopropionamide
(d) None of the above

Question 11.
Which of the following should be most volatile?

(a) Only II
(b) Only IV
(c) Only I
(d) Only III

Question 12.
Melting points are normally highest for
(a) tertiary amides
(b) secondary amides
(c) primary amides
(d) amines

Question 13.
Aniline on oxidation with MnO₂ and H₂SO₄ produces
(a) p-benzoquinone
(b) nitrobenzene
(c) phenol
(d) phenyl hydroxylamine

Question 14.
N₂ gas is liberated when (HCl+ NaNO₂) reacts with the following compounds.
I. CH₃CH₂NH₂
II. urea
III. CH₃CONH₂
IV. C₆H₅NH₂
The answer is
(a) I,II and III
(b) II,III and IV
(c) I,III and IV
(d) I,II and IV

Question 15.

The true statement about the product is
(a) It does not exist as zwitter ion
(b) —NH₂ displays a powerful basic character
(c) It does not act as inner salt
(d) —SO₃ diminishes the basic character of —NH₂

Question 16.
The compound that will react most readily with NaOH to form methanol, is
(a) (CH₃)₄N⁺I^–
(b) CH₃OCH₃
(c) (CH₃)₃S⁺I^–
(d) (CH₃)₃CCl

Question 17.
Aniline react with acetaldehyde to form
(a) Schiff’s base
(b) Carbylamine
(c) Imine
(d) None of these

Question 18.
Which of the following is more basic than aniline?
(a) Diphenyl amine
(b) Triphenylamine
(c) p-nitroaniline
(d) Benzylamine

Question 19.
Aniline in a set of reactions yielded a product D

The structure of the product D would be
(a) C₆H₅CH₂NH₂
(b) C₆H₅NHCH₂CH₃
(c) C₆H₅NHOH
(d) C₆H₅CH₂OH

Question 20.
Amongst the compounds given, the one that would form a brilliant coloured dye on treatment with NaNO₂ in dil.HCl followed by addition to an alkaline solution of β-naphthol is

Question 21.
In the chemical reaction,
CH₃CH₂NH₂ + CHCl₃ + 3KOH ———> A+B+ 3H₂O
The compounds (A) and (B) respectively are
(a) CH₃CH₂CONH₂, 3KCl
(b) C₂H₅NC, K₂CO₃
(c) C₂H₅NC, 3KCl
(d) C₂H₅CN, 3KCl

Question 22.
Which will not go for diazotisation?

Question 23.
Which of the following is the strongest base?

Question 24.

The product’ C’ is
(a) benzonitrile
(b) benzaldehyde
(c) benzoic acid
(d) benzyl amine

Question 25.
Dye test can be used to distinguish between
(a) ethylamine and acetamide
(b) urea and acetamide
(c) methylamine and ethylamine
(d) ethylamine and aniline

Question 26.
Identify the product in the following sequence

(a) 3, 4, 5-tribromobenzene
(b) 1, 2, 3-tribromobenzene
(c) 2, 4, 6-tribromobenzene
(d) 3, 4, 5-tribromonitrobenzene

Question 27.
Benzene diazonium chloride on reaction with phenol in weakly basic medium gives
(a) diphenyl ether
(b) p-hydroxy azobenzene
(c) chlorobenzene
(d) benzene

Question 28.
Which one of the following is not the correct reaction of aryl diazonium salts?

Question 29.
A compound A has molecular formula C₇H₇NO. On treatment with Br₂ and KOH, ‘A’ gives an amine ‘B’ which gives carbylamine test. ‘B’ upon diazotisation and coupling with phenol gives azo dye. ‘A can be
(a) C₆H₅CONHCH₃
(b) C₆H₅NO
(c) C₆H₅CONH₂
(d) p-C₆H₄(NH₂)CHO

Question 30.
Which one of the following will give primary amine on hydrolysis?
(a) Nitro paraffins
(b) Alkyl isocyanide
(c) Alkyl cyanide
(d) Oxime

Question 31.
Butane nitrile may be prepared by heating
(a) propyl alcohol with KCN
(b) butyl alcohol with KCN
(c) butyl chloride with.KCN
(d) propyl chloride with KCN

Question 32.
An aliphatic amine on treatment with alcoholic carbon disulphide and mercuric chloride forms ethyl isothiocyanate, the reaction is known as
(a) Hofmann’s reaction
(b) Hofmann’s rearrangement
(c) Hofmann’s mustard oil reaction
(d) Hofmann’s bromamide degradation reaction

Question 33.
Reaction of aniline with acetyl chloride in the presence of NaOH gives
(a) acetanilide
(b) p-chloro aniline
(c) red dye
(d) aniline hydrochloride

Question 34.
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 tautomerises to give methyl isocyanide
(d) It gives carbylamine reaction with chloroform

Question 35.
In the reaction

The term Y is
(a) acetone
(b) ethanamine
(c) acetaldehyde
(d) dimethyl amine

Direction (Q.NOs. 36-37): In the following questions more than one of the answers given may be correct. Select the correct answers and mark it according to the codes.
Codes
(a) 1, 2 and 3 are correct
(b) 1 and 2 are correct
(c) 2 and 4 are correct
(d) 1 and 3 are correct

Question 36.
Consider the following Compounds.

Select the correct statement (s).
1.I is more basic than II
2.I is more basic than I and III
3.Ill is more basic than II
4.I is weakly acidic

Question 37.
Benzyl amine may be prepared by

Question 38.

Direction (Q.Nos. 39-42): Each of these questions contains two statements: Assertion and Reason. Each of these questions also has four alternative choices, only one of which is the correct answer. You have to select one of the codes (a), (b), (c) and (d) given below.
(a) Assertion is true, Reason is true; Reason is a correct explanation for Assertion.
(b) Assertion is true, Reason is true; Reason is not a correct explanation for Assertion.
(c) Assertion is true, Reason is false.
(d) Assertion is false, Reason is true.

Question 39.
Assertion: 2,6-dimethyl aniline is more basic than 3,5-dimethyl aniline.
Reason: The electronic effect of methyl groups is more at 2 and 6 position in comparision to 3 and 5 position in aniline.

Question 40.
Assertion: Hydrolysis of cyanides always gives formic acid as one of the products.
Reason: Isocyanides on reduction with SnCl2/HCl followed by hydrolysis gives aldehydes.

Question 41.
Assertion: Methyl cyanide has higher boiling point than methyl isocyanide.
Reason: Dipole moment of methyl cyanide is higher than that of methyl isocyanide.

Question 42.
Assertion: A primary amine has higher boiling point than any tertiary amine.
Reason: A tertiary amine has greater number of N—H bonds for H-bonding.

Question 43.
The electrolytic reduction of nitrobenzene in strongly acidic medium produces
(a) p-aminophenol
(b) Azoxybenzene
(c) Azobenzene
(d) Aniline

Question 44.
In the following reaction, the product(A)

Question 45.

Question 46.
Some mefa-directing substituents in aromatic substitution are given. Which one is most deactivating?
(a) —SO₃H
(b) —COOH
(c) —NO₂
(d) —C=N

Question 47.
Which of the following compounds will not undergo Friedel-Crafts reaction easily?
(a) xylene
(b) nitrobenzene
(c) toluene
(d) cumenee

Question 48.
In the reaction

A is
(a) Cu₂Cl₂
(b) H₃PO₂ and H₂O
(c) H+/H₂O
(d) HgSO₄/H₂SO₄

Question 49.
Nitrobenzene on reaction with cone. HNO₃/H₂SO₄ at 80°C-100°C forms, which one of the following products?
(a) 1, 3-dinitrobenzene
(b) 1, 4-dinitrobenzene
(c) 1, 2, 4-trinitrobenzene
(d) 1, 2-dinitrobenzene

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Question 50.
Among the following compounds, the one that is most reactive towards electrophilic nitration is
(a) benzoic acid
(b) nitrobenzene
(c) toluene
(d) benzene

Question 51.
The correct order of increasing basic nature of the following base is

(a) II < V < I < III < IV
(b) V < II < I < III < IV
(c) II < V < I < IV < III
(d) V < II < I < IV < III

Question 52.
In the following reaction,

X is
(a) benzoic acid
(b) salicylic acid
(c) phenol
(d) aniline

Question 53.
The reaction of chlorofom with alcoholic KOH and p-toluidine form

Question 54.
The most basic compound in the following is
(a) NH₃
(b) CH₃NH₂
(c) HN(CH₃)₂
(d) N(CH₃)₃

Question 55.
Reaction of aniline with benzaldehyde is
(a) polymerisation
(b) condensation
(c) addition
(d) substitution

Question 56.
Parkinson’s disease is linked to abnormalities in the levels of dopamine in the body. The structure of dopamine is

Question 57.
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 58.
Acetamide is treated with the following reagents separately. Which one of these would yield methyl amine?
(a) NaOH—Br₂
(b) Sodalime
(c) Hot conc.H₂SO₄
(d) PCl₅

Question 59.
Aniline in a set of the following reactions yielded a coloured product ‘ Y’.

Question 60.
N₂ gas will not be evolved Upon reaction of HNO₂ with which of the following amines?
(a) 1°
(b) 2°
(c) 3°
(d) Both (b) and (c)

Question 61.
The correct order of basic strength of CH₃NH₂(I), (CH₃)₂NH(II), (CH₃)₃N(III), C₆H₅CH₂NH₂(IV) in gaseous phase is
(a) IV < III < II < I
(b) IV < III < I < II
(c) I < II < III < IV
(d) IV < I < II < III

Question 62.

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