JEE Main & Advanced Chemistry Nitrogen Containing Compounds Question Bank

done Self Evaluation Test - Amines Total Questions - 80

• question_answer1)
  The conversion of benzene diazonium chloride to bromobenzene can be accomplished by
  A)
  Reimer-Tiemann reaction done clear
  B)
  Friedel-Crafts reaction done clear
  C)
  Gattermann reaction done clear
  D)
  Azo-Coupling reaction done clear
  View Solution play_arrow

• question_answer2)
  \[{{C}_{7}}{{H}_{9}}N\] has how many isomeric forms that contain a benzene ring?  
  A)
  4                                  done clear
  B)
  5    done clear
  C)
  6                                  done clear
  D)
  7 done clear
  View Solution play_arrow

• question_answer3)
  The amine that does not react with acetyl chloride is
  A)
  \[C{{H}_{3}}N{{H}_{2}}\]                   done clear
  B)
  \[{{(C{{H}_{3}})}_{2}}NH\] done clear
  C)
  \[{{(C{{H}_{3}})}_{3}}N\]                   done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer4)
  In the diazotisation 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 done clear
  B)
  supress hydrolysis of phenol done clear
  C)
  ensure a stoichiometric amount of nitrous acid done clear
  D)
  neutralise the base liberated done clear
  View Solution play_arrow

• question_answer5)
  Nitrosoamines \[({{R}_{2}}N-N=O)\] are insoluble in water. On heating with conc. \[{{H}_{2}}S{{O}_{4}}\], they give secondary amines. The reaction is called
  A)
  Liebermann nitroso reaction done clear
  B)
  Etard reaction done clear
  C)
  Fries reaction done clear
  D)
  Perkin reaction done clear
  View Solution play_arrow

• question_answer6)
  Aniline reacts with phosgene and KOH to form
  A)
                         done clear
  B)
  done clear
  C)
  done clear
  D)
    done clear
  View Solution play_arrow

• question_answer7)
  In a reaction of aniline a coloured product C was obtained. The structure of C would be:
  A)
  done clear
  B)
  done clear
  C)
  done clear
  D)
  done clear
  View Solution play_arrow

• question_answer8)
  Reaction of cyclohexanone with dimethylamine in the presence of catalytic amount of an acid forms a compound if water during the reaction is continuously removed. The compound formed is generally known as 
  A)
  an amine           done clear
  B)
  an imine done clear
  C)
  an enamine        done clear
  D)
  a Schiff's base done clear
  View Solution play_arrow

• question_answer9)
  The alkene formed as a major product in the above elimination reaction is
  A)
        done clear
  B)
  done clear
  C)
                   done clear
  D)
  \[C{{H}_{2}}=C{{H}_{2}}\] done clear
  View Solution play_arrow

• question_answer10)
  Product [B] in this reaction is:
  A)
       done clear
  B)
  done clear
  C)
  done clear
  D)
  done clear
  View Solution play_arrow

• question_answer11)
  p-Chloroaniline and anilinium hydrogen chloride can be distinguished by:
  A)
              Sandmeyer reaction done clear
  B)
  Carbyiamine reaction done clear
  C)
  Hinsberg's reaction done clear
  D)
  \[AgN{{O}_{3}}\] done clear
  View Solution play_arrow

• question_answer12)
  Consider the following sequence of reactions:

  \[Compound\left[ A \right]\xrightarrow{Reduction}\left[ B \right]\]\[\xrightarrow{HN{{O}_{2}}}C{{H}_{3}}C{{H}_{2}}OH\] The compound [A] is

  A)
  \[C{{H}_{3}}C{{H}_{2}}CN\]              done clear
  B)
  \[C{{H}_{3}}N{{O}_{2}}\] done clear
  C)
  \[C{{H}_{3}}NC\]        done clear
  D)
  \[C{{H}_{3}}CN\] done clear
  View Solution play_arrow

• question_answer13)
  What will be the final product in the following reaction sequence? \[C{{H}_{3}}C{{H}_{2}}CN\xrightarrow{{{H}^{+}}/{{H}_{2}}O}A\xrightarrow[\Delta ]{N{{H}_{3}}}B\]                         \[\xrightarrow{NaOBr}C\]
  A)
  \[C{{H}_{3}}C{{H}_{2}}CON{{H}_{2}}\]       done clear
  B)
  \[C{{H}_{3}}C{{H}_{2}}COBr\] done clear
  C)
  \[C{{H}_{3}}C{{H}_{2}}N{{H}_{2}}\]            done clear
  D)
  \[C{{H}_{3}}C{{H}_{2}}C{{H}_{2}}N{{H}_{2}}\] done clear
  View Solution play_arrow

• question_answer14)
  \[C{{H}_{3}}-C{{H}_{2}}C\equiv N\xrightarrow{X}C{{H}_{3}}C{{H}_{2}}CHO\]. The compound X is
  A)
  \[SnC{{l}_{2}}/HCl/{{H}_{2}}O,boil\] done clear
  B)
  \[{{H}_{2}}/Pd-BaS{{O}_{4}}\] done clear
  C)
  \[LiAI{{H}_{4}}/ether\] done clear
  D)
  \[NaB{{H}_{4}}/ether/{{H}_{3}}{{O}^{+}}\] done clear
  View Solution play_arrow

• question_answer15)
  Tautomerism will be exhibited by
  A)
  \[{{(C{{H}_{3}})}_{3}}CNO\]              done clear
  B)
  \[{{(C{{H}_{3}})}_{2}}NH\] done clear
  C)
  \[{{R}_{3}}CN{{O}_{2}}\]                   done clear
  D)
  \[RC{{H}_{2}}N{{O}_{2}}\] done clear
  View Solution play_arrow

• question_answer16)
  Hydrolysis of \[C{{H}_{2}}C{{H}_{2}}N{{O}_{2}}\] with 85% \[{{H}_{2}}S{{O}_{\text{4}}}\]gives
  A)
  \[C{{H}_{3}}C{{H}_{2}}OH\]              done clear
  B)
  \[{{C}_{2}}{{H}_{6}}\] done clear
  C)
  \[C{{H}_{3}}CH=NOH\]           done clear
  D)
  \[C{{H}_{3}}COOH\] done clear
  View Solution play_arrow

• question_answer17)
  Towards electrophilic substitution, the most reactive will be
  A)
  Nitrobenzene done clear
  B)
  Aniline done clear
  C)
  Aniline hydrochloride done clear
  D)
  N-Acetylaniline done clear
  View Solution play_arrow

• question_answer18)
  3, 5-dibromotoluene can be best synthesised by
  A)
  done clear
  B)
  done clear
  C)
  done clear
  D)
  done clear
  View Solution play_arrow

• question_answer19)
  Which of the following compounds is an enamine?
  A)
  done clear
  B)
  done clear
  C)
  done clear
  D)
  done clear
  View Solution play_arrow

• question_answer20)
  Which of the following reactions will not give N, N- dimethyl benzamide?
  A)
  done clear
  B)
  done clear
  C)
  done clear
  D)
  done clear
  View Solution play_arrow

• question_answer21)
  The product-(C) obtained in the following sequence of reactions is
  A)
             done clear
  B)
  done clear
  C)
     done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer22)
  Which of the following reagents will be useful to distinguish between
  A)
  Dilute \[HCl\] done clear
  B)
  \[{{C}_{6}}{{H}_{5}}S{{O}_{2}}\] and \[O{{H}^{+}}/{{H}_{2}}O\] done clear
  C)
  \[HONO\] then \[\beta \]-naphthol done clear
  D)
  \[AgN{{O}_{3}}\] in \[{{H}_{2}}O\] done clear
  View Solution play_arrow

• question_answer23)
  Which of the following is the strongest base?
  A)
             done clear
  B)
  done clear
  C)
             done clear
  D)
  done clear
  View Solution play_arrow

• question_answer24)
  The cyclobutyl methylamine with nitrous acid gives 
  A)
      done clear
  B)
  done clear
  C)
                          done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer25)
  Which of the following amines will react with cyclohexanone to give enamine?
  A)
  \[{{(C{{H}_{3}})}_{2}}NH\]                 done clear
  B)
  done clear
  C)
              done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer26)
  In the reaction shown below, the major product(s) formed is/are 
  A)
  done clear
  B)
  done clear
  C)
  done clear
  D)
  done clear
  View Solution play_arrow

• question_answer27)
  In the following reactions, the major product W is
  A)
  done clear
  B)
  done clear
  C)
  done clear
  D)
    done clear
  View Solution play_arrow

• question_answer28)
  In the following reactions, the product S is
  A)
  done clear
  B)
    done clear
  C)
          done clear
  D)
  done clear
  View Solution play_arrow

• question_answer29)
  In the reaction, \[C{{H}_{3}}CN+2H\xrightarrow{{}}X\xrightarrow{Boiling\,{{H}_{2}}O}\text{Y},\] the Term Y is
  A)
  acetone   done clear
  B)
  ethanamine done clear
  C)
  acetaldehyde     done clear
  D)
  dimethylamine done clear
  View Solution play_arrow

• question_answer30)
  In the reaction \[{{C}_{6}}{{H}_{5}}N{{H}_{2}}+C{{S}_{2}}\xrightarrow[\Delta ]{HgC{{l}_{2}}}\] the product obtained is
  A)
  phenyl isocyanide done clear
  B)
  phenyl cyanide done clear
  C)
  p-Simmo benzene sulphonic acid done clear
  D)
  phenyl isothiocyanate done clear
  View Solution play_arrow

• question_answer31)
  Arrange the following amines in the order of increasing basicity.
  A)
  done clear
  B)
  done clear
  C)
  done clear
  D)
  done clear
  View Solution play_arrow

• question_answer32)
  The final product formed when Methyl amine is treated with \[NaN{{O}_{2}}\] and \[HCl\] is:
  A)
  Diazomethane    done clear
  B)
  Methylalcohol done clear
  C)
  Methylcyanide   done clear
  D)
  Nitromethane done clear
  View Solution play_arrow

• question_answer33)
  The order of basicity of amines in gaseous state is:
  A)
  \[1{}^\circ >2{}^\circ >3{}^\circ >N{{H}_{3}}\] done clear
  B)
  \[3{}^\circ >2{}^\circ >N{{H}_{3}}>1{}^\circ \] done clear
  C)
  \[3{}^\circ >2{}^\circ >1{}^\circ >N{{H}_{3}}\]  done clear
  D)
  \[N{{H}_{3}}>1{}^\circ >2{}^\circ >3{}^\circ \] done clear
  View Solution play_arrow

• question_answer34)
  Carbylamine forms from aliphatic or aromatic primary amine via which of the following intermediates?
  A)
  Carbanion          done clear
  B)
  Carbene done clear
  C)
  Carbocation      done clear
  D)
  Carbon radical done clear
  View Solution play_arrow

• question_answer35)
  The most basic compound among the following is
  A)
  Acetanilide         done clear
  B)
  Benzylamine done clear
  C)
  p-Nitro aniline    done clear
  D)
  Aniline done clear
  View Solution play_arrow

• question_answer36)
  Which of the following compounds gives dye test?
  A)
  Aniline                           done clear
  B)
  Methylamine done clear
  C)
  Diphenylamine   done clear
  D)
  Ethylamine done clear
  View Solution play_arrow

• question_answer37)
  Acetanilide on nitration followed by alkaline hydrolysis mainly gives
  A)
  o-Nitroacetanilide done clear
  B)
  p-Nitroamlme done clear
  C)
  m-Nitroaniline done clear
  D)
  2, 4, 6-Trinitroamline done clear
  View Solution play_arrow

• question_answer38)
  What is X?
  A)
               done clear
  B)
  done clear
  C)
              done clear
  D)
  done clear
  View Solution play_arrow

• question_answer39)
  Which reaction sequence would be best to prepare 3-chloroanilne from benzene?
  A)
  Chlorination, nitration, reduction done clear
  B)
  Nitration, chlorination, reduction done clear
  C)
  Nitration, reduction, chlorination done clear
  D)
  Nitration, reduction, acetylation, chlorination, hydrolysis done clear
  View Solution play_arrow

• question_answer40)
  A compound 'A' when treated with \[HN{{O}_{3}}\] (in presence of \[{{H}_{2}}S{{O}_{4}}\]) gives compound 'B' which is then reduced with Sn and \[HCl\] to aniline? The compound 'A' is
  A)
  toluene              done clear
  B)
  benzene done clear
  C)
  ethane               done clear
  D)
  acetamide done clear
  View Solution play_arrow

• question_answer41)
  An organic compound [A] on reduction gives compound [B]. [B] on treatment with \[CHC{{l}_{3}}\] and alcoholic KOH gives [C]. [C] on catalytic reduction gives N-methylaniline. The compound A is
  A)
  Methylamine     done clear
  B)
  Nitromethane done clear
  C)
  Aniline                           done clear
  D)
  Nitrobenzene done clear
  View Solution play_arrow

• question_answer42)
  Predict about the relative boiling point of the following two amines.
  A)
  Boiling point of I > II done clear
  B)
  Boiling point of II > I done clear
  C)
  Both should have equal boiling points done clear
  D)
  It can't be predicted done clear
  View Solution play_arrow

• question_answer43)
  Which statement is true regarding the following structure?
  A)
  it is a chiral molecule done clear
  B)
  It exists in two resolvable optically active forms done clear
  C)
  Both [a] and [b] done clear
  D)
  Neither [a] nor [b] done clear
  View Solution play_arrow

• question_answer44)
  Which one of the following is not an oxidation product of a primary amine?
  A)
  A hydroxylamine done clear
  B)
  A nitroso compound done clear
  C)
  A nitro compound done clear
  D)
  All of these done clear
  View Solution play_arrow

• question_answer45)
  Identify Z in the following sequence of reactions- \[C{{H}_{3}}COON{{H}_{4}}\xrightarrow{\Delta }X\xrightarrow{{{P}_{2}}{{O}_{5}}}Y\] \[\xrightarrow{{{H}_{2}}O/H}Z\]
  A)
  \[C{{H}_{3}}-C{{H}_{2}}-CO-N{{H}_{2}}\] done clear
  B)
  \[C{{H}_{3}}-CN\] done clear
  C)
  \[{{(C{{H}_{3}}CO)}_{2}}O\] done clear
  D)
  \[C{{H}_{3}}-COOH\] done clear
  View Solution play_arrow

• question_answer46)
  The order of basicity of the compounds
  A)
  IV>I>III>II       done clear
  B)
  I>III>II>IV done clear
  C)
  III>I>IV>II   done clear
  D)
  II>I>III>IV done clear
  View Solution play_arrow

• question_answer47)
  Complete reduction of benzene-diazonium chloride with \[Zn/HCl\] gives:
  A)
  Aniline                           done clear
  B)
  Phenylhydrazine done clear
  C)
  Azobenzene        done clear
  D)
  Hydrazobenzene done clear
  View Solution play_arrow

• question_answer48)
  Conversion of benzene diazonium chloride to chlorobenzene is an example of which of the following reactions?
  A)
  Claisen              done clear
  B)
  Friedel-craft done clear
  C)
  Sandmeyer       done clear
  D)
  Wurtz done clear
  View Solution play_arrow

• question_answer49)
  In a set of reactions p-nitrotoluene yielded a product E.  The product E would be:
  A)
             done clear
  B)
  done clear
  C)
                   done clear
  D)
  done clear
  View Solution play_arrow

• question_answer50)
   

  Which of the following will produce isopropyl amine-

  (I) \[{{(C{{H}_{3}})}_{2}}CO\xrightarrow{N{{H}_{2}}OH}X\xrightarrow{LiAl{{H}_{4}}}\]

  (II) \[C{{H}_{3}}-C{{H}_{2}}-CHO\xrightarrow[heat]{N{{H}_{3}}}X\xrightarrow{LiAl{{H}_{4}}}\]

  (III) \[{{(C{{H}_{3}})}_{2}}CH-OH+PC{{l}_{5}}\xrightarrow{{}}X\xrightarrow{N{{H}_{3}}}\]

  (IV) \[C{{H}_{3}}-C{{H}_{2}}-C{{H}_{2}}+N{{H}_{2}}\xrightarrow{heat}\]

  A)
  I, II                   done clear
  B)
  II, III done clear
  C)
  I, III                  done clear
  D)
  IV only done clear
  View Solution play_arrow

• question_answer51)
  Acetaldoxime reacts with \[{{P}_{2}}{{O}_{5}}\] to give
  A)
  Methyl cyanide  done clear
  B)
  Methyl cyanate done clear
  C)
  Ethyl cyanide    done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer52)
  Identify the prdouct C in the series \[C{{H}_{3}}CN\xrightarrow{Na/{{C}_{2}}{{H}_{5}}OH}A\xrightarrow{HN{{\text{O}}_{2}}}B\] \[\xrightarrow{Cu/573K}C\]
  A)
  \[C{{H}_{3}}COOH\]                done clear
  B)
  \[C{{H}_{2}}C{{H}_{2}}NHOH\] done clear
  C)
  \[C{{H}_{3}}CON{{H}_{2}}\]              done clear
  D)
  \[C{{H}_{3}}CHO\] done clear
  View Solution play_arrow

• question_answer53)
  An organic compound "A" having molecular formula \[{{C}_{2}}{{H}_{3}}N\] on reduction gave another compound 'B' Upon treatment with nitrous acid, 'B' gave ethyl alcohol. On warming with chloroform and alcoholic KOH, B formed an offensive smelling compound 'C'. The compound 'C' is
  A)
  \[C{{H}_{3}}C{{H}_{2}}N{{H}_{2}}\]            done clear
  B)
  \[C{{H}_{3}}C{{H}_{2}}N\vec{=}C\] done clear
  C)
  \[C{{H}_{3}}C\equiv N\] done clear
  D)
  \[C{{H}_{2}}C{{H}_{2}}OH\] done clear
  View Solution play_arrow

• question_answer54)
  Ethyl isocyanide on hydrolysis in acidic medium generates
  A)
  propanoic acid and ammonium salt done clear
  B)
  ethanoic acid and ammonium salt done clear
  C)
  methylamine salt and ethanoic acid done clear
  D)
  ethylamine salt and methanoic acid done clear
  View Solution play_arrow

• question_answer55)
  Primary nitro compounds react with nitrous acid to form nitrolic acids which dissolve in \[NaOH\]giving
  A)
  yellow solution done clear
  B)
  blue solution done clear
  C)
  colourless solution done clear
  D)
  red solution done clear
  View Solution play_arrow

• question_answer56)
  What is the product of the following series of reactions?
  A)
      done clear
  B)
  done clear
  C)
    done clear
  D)
  done clear
  View Solution play_arrow

• question_answer57)
  The starting reagents needed to make the azo compound shown below
  A)
  done clear
  B)
  done clear
  C)
  done clear
  D)
  done clear
  View Solution play_arrow

• question_answer58)
  Which of the following does not give N-ethyl cyclopentylamine as major product?
  A)
  done clear
  B)
  done clear
  C)
    done clear
  D)
  done clear
  View Solution play_arrow

• question_answer59)
  Match the compounds in List I with their nature from List II, as seen in aqueous medium

  List I	List II
  I. Acetamide	A. Acidic
  II. Benzonitrile	B. Basic
  III. Triethylamine	C. Neutral
  IV. Phenol

  A)
  I-C;       II-C;      III-B;     IV-A done clear
  B)
  I-B;       II-C;      III-C;     IV-A done clear
  C)
  I-C;       II-B;      III-B;     IV-C done clear
  D)
  I-A;       II-A;      III-C;     IV-B done clear
  View Solution play_arrow

• question_answer60)
  The correct order of basicities of the following compounds is           

  (1)	(2)\[C{{H}_{3}}-C{{H}_{2}}-N{{H}_{2}}\]
  (3)\[{{(C{{H}_{3}})}_{2}}NH\]	(4)\[C{{H}_{3}}-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-N{{H}_{2}}\]

  A)
  2>1>3>4         done clear
  B)
  1>3>2>4 done clear
  C)
  3>1>2>4         done clear
  D)
  1>2>3>4 done clear
  View Solution play_arrow

• question_answer61)
  In the following reaction, X is \[X\xrightarrow{Bromination}Y\xrightarrow{NaN{{O}_{2}}/HCl}\] \[Z\xrightarrow[{{C}_{2}}{{H}_{5}}OH]{Boiling}Tribromobenzene\]
  A)
  benzoicacid        done clear
  B)
  salicylic acid done clear
  C)
  phenol               done clear
  D)
  aniline done clear
  View Solution play_arrow

• question_answer62)
  Aniline is reacted with bromine water and the resulting product is treated with an aqueous solution of sodium nitrite in presence of dilute\[HCl\]. The compound so formed is converted into tetrafluoroborate which is subsequently heated dry. The final product is
  A)
  p-Bromofluorobenzene done clear
  B)
  p-Bromoaniline done clear
  C)
  2, 4, 6-Tribromofluorobenzene done clear
  D)
  1, 3, 5-Tribromobenzene done clear
  View Solution play_arrow

• question_answer63)
  Arrange the following three compounds in order of decreasing acidity

  [A]

  [B]

  [C]

  A)
  B>A>C done clear
  B)
  B>C>A done clear
  C)
  C>B>A                      done clear
  D)
  C>A>B done clear
  View Solution play_arrow

• question_answer64)
  In the reaction The products of obtained are
  A)
  done clear
  B)
  done clear
  C)
            done clear
  D)
  None of these done clear
  View Solution play_arrow

• question_answer65)
  In the acidic reduction of nitrobenzene, which of the following is the intermediate?
  A)
  \[{{C}_{6}}{{H}_{5}}-N=O\] done clear
  B)
  \[{{C}_{6}}{{H}_{5}}NH-NH{{C}_{6}}{{H}_{5}}\] done clear
  C)
  \[{{C}_{6}}{{H}_{5}}-N=N-{{C}_{6}}{{H}_{5}}\] done clear
  D)
  \[{{C}_{6}}{{H}_{5}}-N=\overset{O}{\mathop{\overset{\uparrow }{\mathop{N}}\,}}\,-{{C}_{6}}{{H}_{5}}\] done clear
  View Solution play_arrow

• question_answer66)
  'Z' in the following sequence of reactions is

  \[{{C}_{6}}{{H}_{5}}\xrightarrow[\Delta ]{HN{{O}_{3}}/{{H}_{7}}S{{O}_{4}}}\text{W }\xrightarrow{Zn/HCl}\] \[X\xrightarrow[HCl]{NaN{{O}_{2}}}Y~\xrightarrow{{{H}_{2}}O/{{H}_{3}}P{{O}_{2}}}Z\]

  A)
          done clear
  B)
    done clear
  C)
                        done clear
  D)
  done clear
  View Solution play_arrow

• question_answer67)
  An organic compound [A] on reduction gives compound [B]. [B] on treatment with \[CHC{{l}_{3}}\] and alcoholic \[KOH\] gives [C]. [C] on catalytic reduction gives N-methylaniline. The compound A is
  A)
  Methylamine     done clear
  B)
  Nitromethane done clear
  C)
  Aniline                           done clear
  D)
  Nitrobenzene done clear
  View Solution play_arrow

• question_answer68)
  
  A)
  done clear
  B)
    done clear
  C)
                          done clear
  D)
  done clear
  View Solution play_arrow

• question_answer69)
  Pyrrole and pyridine both are basic and form salts with acids? Which of the following statement is true regarding the aromatic character of the four species?
  A)
  All the four are aromatic done clear
  B)
  I, III and IV are aromatic done clear
  C)
  I, II and III are aromatic done clear
  D)
  I and III are aromatic done clear
  View Solution play_arrow

• question_answer70)
  Ethylene can be prepared in good yield by
  A)
  \[C{{H}_{3}}C{{H}_{2}}{{N}^{+}}{{(C{{H}_{3}})}_{3}}{{I}^{-}}\xrightarrow{heat}\] \[C{{H}_{2}}=C{{H}_{2}}+{{(C{{H}_{3}})}_{3}}N+HI\] done clear
  B)
  \[C{{H}_{3}}C{{H}_{2}}{{N}^{+}}{{(C{{H}_{3}})}_{3}}O{{H}^{-}}\xrightarrow{heat}\] \[C{{H}_{2}}=C{{H}_{2}}+{{\left( C{{H}_{3}} \right)}_{3}}N+{{H}_{2}}O\] done clear
  C)
  Both [a] and [b] done clear
  D)
  \[C{{H}_{3}}C{{H}_{2}}N{{H}_{2}}\xrightarrow{heat}\] \[{{\operatorname{CH}}_{2}}=C{{H}_{2}}+N{{H}_{3}}\] done clear
  View Solution play_arrow

• question_answer71)
  Which of the following leads to carbon-carbon double bond?
  A)
  \[1{}^\circ \] Amine + \[RCHO\to \] done clear
  B)
  \[2{}^\circ \] Amine + \[{{R}_{2}}CO\to \] done clear
  C)
  \[2{}^\circ \] Amine + \[RCHO\to \] done clear
  D)
  Both [b] and [c] done clear
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• question_answer72)
  In Hoftnann bromamide degradation, one of the important steps is the migration of
  A)
  an alkyl group without its electron pair to electron deficient N atom. done clear
  B)
  an alkyl group with its electron pair to electron deficient O atom. done clear
  C)
  an alkyl group with its electron pair to electron rich N atom. done clear
  D)
  an alkyl group with its electron pair to electron deficient N atom. done clear
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• question_answer73)
  \[{{(C{{H}_{3}})}_{3}}C-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-N{{H}_{2}}\xrightarrow[(ii)\,{{D}_{2}}O]{(i)\,O{{D}^{-}}/B{{r}_{2}}}Product\,P\] is
  A)
  \[{{\left( C{{H}_{3}} \right)}_{3}}CN{{H}_{2}}\]          done clear
  B)
  \[{{\left( C{{H}_{3}} \right)}_{3}}CNHD\] done clear
  C)
  \[{{\left( C{{H}_{3}} \right)}_{3}}CN{{D}_{2}}\]          done clear
  D)
  no reaction done clear
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• question_answer74)
  Identify product D in the following reaction sequence:
  A)
      done clear
  B)
  done clear
  C)
  done clear
  D)
    done clear
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• question_answer75)
  The correct order of decreasing basic character of the three aliphatic primary amines is           
  A)
  \[I>II>III\]         done clear
  B)
  \[III>II>I\] done clear
  C)
  \[I>II\approx III\]            done clear
  D)
  \[I=II\equiv III\] done clear
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• question_answer76)
  Which of the following can undergo electrophilic substitution when treated with nitrous acid at \[0{}^\circ C\]?
  A)
  \[{{C}_{6}}{{H}_{5}}N{{H}_{2}}\]                 done clear
  B)
  \[{{C}_{6}}{{H}_{5}}NHC{{H}_{2}}\] done clear
  C)
  \[{{C}_{6}}{{H}_{5}}N{{(C{{H}_{3}})}_{2}}\]          done clear
  D)
  None done clear
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• question_answer77)
  When aniline reacts with oil of bitter almonds \[({{C}_{6}}{{H}_{5}}CHO)\] condensation takes place and benzal derivative is formed. This is known as
  A)
  Million's base      done clear
  B)
  Schiff reagent done clear
  C)
  Schiffs base        done clear
  D)
  Benedict's reagent done clear
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• question_answer78)
  The correct stability order of the following resonance structures is

  \[\underset{(I)}{\mathop{{{H}_{2}}C=\overset{+}{\mathop{N}}\,=\overline{N}}}\,\]	\[\underset{(II)}{\mathop{{{H}_{2}}\overset{+}{\mathop{C}}\,-\overset{{}}{\mathop{N}}\,=\overline{N}}}\,\]
  \[\underset{(III)}{\mathop{{{H}_{2}}\overset{-}{\mathop{C}}\,-\overset{+}{\mathop{N}}\,\equiv N}}\,\]	\[\underset{(IV)}{\mathop{{{H}_{2}}\overset{-}{\mathop{C}}\,-\overset{+}{\mathop{N}}\,=\overset{+}{\mathop{N}}\,}}\,\]

   
  A)
  (I)         >   (II)  >   (IV)   >   (III) done clear
  B)
  (I)         >   (III)  >   (II)   >   (IV) done clear
  C)
  (II)        >   (I)    >   (III)   >   (IV) done clear
  D)
  (III)       >   (I)    >   (IV)   >   (II) done clear
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• question_answer79)
  Introduction of a methyl group in ammonia markedly increases the basic strength of ammonia in aq. solution, introduction of the second methyl group increases only marginally the basic, strength of methyl amine in water. This is due to
  A)
  different type of hybridisation in the two amines, done clear
  B)
  protonated dimethyl amine is more solvated than methyl amine. done clear
  C)
  protonated dimethyl amine is more solvated than the protonated methyl amine. done clear
  D)
  protonated dimethyl amine is less stable than the protonated methyl amine. done clear
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• question_answer80)
  Which of the following amines can be resolved into two enantiomers?  
  A)
  I, IV                              done clear
  B)
  I, II done clear
  C)
  I, III, IV             done clear
  D)
  III, IV done clear
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