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Organic Compounds Containing Nitrogen

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Every question from past board papers on Organic Compounds Containing Nitrogen, newest paper first. Open any question for its full worked answer.

NEET UG 2025 question paper (official, booklet 45)

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  1. Predict the major product 'P' in the following sequence of reactions -

    (i) HBr, benzoyl peroxide; (ii) KCN; (iii) Na(Hg)/\(\mathrm{C_2H_5OH}\) -> P (Major), starting from 1-methylcyclopentene

    Reactant: cyclopentene ring with CH3 on a ring carbon; options are cyclopentane structures: (1) CH3 and CH2NH2 on adjacent ring carbons, (2) CH3 and CH2NH2 on the same carbon, (3) CH3 and CN on adjacent carbons, (4) CH3 and CN on same carbon

    4 marks · See worked answer →

  2. The correct order of decreasing basic strength of the given amines is :

    4 marks · See worked answer →

  3. Given below are two statements :

    Statement I : Benzenediazonium salt is prepared by the reaction of aniline with nitrous acid at 273 - 278 K. It decomposes easily in the dry state.

    Statement II : Insertion of iodine into the benzene ring is difficult and hence iodobenzene is prepared through the reaction of benzenediazonium salt with KI.

    In the light of the above statements, choose the most appropriate answer from the options given below :

    4 marks · See worked answer →

NEET UG 2024 question paper (official, booklet S6)

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  1. Given below are two statements:

    Statement I : Aniline does not undergo Friedel-Crafts alkylation reaction.

    Statement II : Aniline cannot be prepared through Gabriel synthesis.

    In the light of the above statements, choose the correct answer from the options given below:

    4 marks · See worked answer →

  2. Identify the major product C formed in the following reaction sequence :

    \(CH_3-CH_2-CH_2-I \xrightarrow{NaCN} A \xrightarrow[\text{Partial hydrolysis}]{OH^-} B \xrightarrow[Br_2]{NaOH} C\) (major)

    4 marks · See worked answer →

NEET UG 2023 question paper (official, booklet G6)

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  1. Identify the product in the following reaction :

    Benzenediazonium chloride (\(\mathrm{C_6H_5N_2^+Cl^-}\)) with (i) Cu\(_2\)Br\(_2\)/HBr (ii) Mg/dry ether (iii) H\(_2\)O \(\rightarrow\) Product

    reaction scheme and four structure options

    4 marks · See worked answer →

  2. Some tranquilizers are listed below. Which one from the following belongs to barbiturates?

    4 marks · See worked answer →

  3. Which of the following reactions will NOT give primary amine as the product?

    4 marks · See worked answer →

NEET UG 2022 question paper (official, booklet R6)

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  1. Given below are two statements :

    Statement I :

    Primary aliphatic amines react with \(HNO_2\) to give unstable diazonium salts.

    Statement II :

    Primary aromatic amines react with \(HNO_2\) to form diazonium salts which are stable even above 300 K.

    In the light of the above statements, choose the most appropriate answer from the options given below :

    4 marks · See worked answer →

  2. Which of the following sequence of reactions is suitable to synthesize chlorobenzene ?

    options 1 and 4 contain ring structures (aniline-type and benzene ring)

    4 marks · See worked answer →

  3. The product formed from the following reaction sequence is

    [benzonitrile] \(\xrightarrow[\text{(iii) } H_2O]{\text{(i) } LiAlH_4, H_2O;\ \text{(ii) } NaNO_2 + HCl}\)

    benzonitrile with reagents arrow and four product structures: benzyl alcohol, benzamide, benzyl diazonium chloride, benzyl chloride

    4 marks · See worked answer →

NEET UG 2021 question paper (official, booklet M4)

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  1. Identify the compound that will react with Hinsberg's reagent to give a solid which dissolves in alkali.

    four structures: nitroethane, N-methylethanamine, ethanamine, N-ethyl-N-methylethanamine (as drawn)

    4 marks · See worked answer →

  2. The reagent 'R' in the given sequence of chemical reaction is :

    2,4,6-tribromoaniline \(\xrightarrow{NaNO_2, HCl,\ 0-5^\circ C}\) 2,4,6-tribromobenzenediazonium chloride \(\xrightarrow{R}\) 1,3,5-tribromobenzene

    reaction scheme: tribromoaniline to diazonium salt to tribromobenzene with reagent R

    4 marks · See worked answer →

NEET UG 2020 question paper (official, booklet E1)

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  1. Which of the following amine will give the carbylamine test ?

    four benzene-ring amine structures: NH2, NHCH3, N(CH3)2, NHC2H5

    4 marks · See worked answer →

  2. Which of the following is a cationic detergent ?

    4 marks · See worked answer →

NEET UG 2019 question paper (official, booklet P1)

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  1. The correct order of the basic strength of methyl substituted amines in aqueous solution is :

    4 marks · See worked answer →

NEET UG 2017 question paper (official, booklet B)

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  1. The correct increasing order of basic strength for the following compounds is : [(I) aniline, (II) 4-nitroaniline, (III) 4-methylaniline]

    three substituted anilines I, II, III

    4 marks · See worked answer →

  2. Which of the following reactions is appropriate for converting acetamide to methanamine ?

    4 marks · See worked answer →

NEET UG 2016 Phase 1 question paper (official, booklet A)

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  1. The correct statement regarding the basicity of arylamines is :

    4 marks · See worked answer →

NEET UG 2016 Phase 2 question paper (official, booklet ZZ)

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  1. Which one of the following nitro-compounds does not react with nitrous acid?

    4 nitro-compound structures

    4 marks · See worked answer →

  2. A given nitrogen-containing aromatic compound \(A\) reacts with Sn/HCl, followed by \(HNO_2\) to give an unstable compound \(B\). \(B\), on treatment with phenol, forms a beautiful coloured compound \(C\) with the molecular formula \(C_{12}H_{10}N_2O\). The structure of compound \(A\) is

    4 substituted benzene options

    4 marks · See worked answer →