-
question_answer1)
The compound
Forms nitro so amines when the substituents are [Roorkee 1999]
A)
\[{{R}_{1}}=C{{H}_{3}},\,{{R}_{2}}={{R}_{3}}=H\] done
clear
B)
\[{{R}_{1}}={{R}_{2}}=H,\,\,{{R}_{3}}={{C}_{2}}{{H}_{5}}\] done
clear
C)
\[{{R}_{1}}=H,\,\,{{R}_{2}}={{R}_{3}}=C{{H}_{3}}\] done
clear
D)
\[{{R}_{1}}=C{{H}_{3}},\,\,{{R}_{2}}={{C}_{2}}{{H}_{5}},\,\,{{R}_{3}}=H\] done
clear
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question_answer2)
The action of nitrous acid on ethyl amine gives [DPMT 1982; CPMT 1971, 89, 94; MP PET 1993, 2001; RPMT 1997; Pb. PMT 1999]
A)
Ethane done
clear
B)
Ammonia done
clear
C)
Ethyl acohol done
clear
D)
Nitroethane done
clear
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question_answer3)
Aniline when diazotized in cold and then treated with dimethyl aniline gives a coloured product. Its structure would be [CBSE PMT 2004]
A)
B)
C)
D)
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question_answer4)
Indicate which nitrogen compound amongst the following would undergo Hofmann's reaction (i.e. reaction with \[B{{r}_{2}}\] and strong KOH) to furnish the primary amine (\[R-N{{H}_{2}}\]) [CBSE PMT 1989]
A)
\[R-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-NH.C{{H}_{3}}\] done
clear
B)
\[R-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-O.N{{H}_{4}}\] done
clear
C)
\[R-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-N{{H}_{2}}\] done
clear
D)
\[R-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-NHOH\] done
clear
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question_answer5)
[BHU 1995]
A)
B)
C)
D)
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question_answer6)
The correct order of basicity?s of the following compounds is
\[\underset{4}{\mathop{C{{H}_{3}}-\overset{O}{\mathop{\overset{||}{\mathop{C}}\,}}\,-N{{H}_{2}}}}\,\] [IIT-JEE (Screening) 2001]
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
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question_answer7)
Which of the following would be most reactive towards nitration [AMU 2000; UPSEAT 2002]
A)
Benzene done
clear
B)
Nitro benzene done
clear
C)
Toluene done
clear
D)
Chloro benzene done
clear
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question_answer8)
Aniline reacts with acetaldehyde to form [MHCET 2004; AFMC 2004]
A)
Schiff's base done
clear
B)
Carbylamine done
clear
C)
Immine done
clear
D)
None of these done
clear
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question_answer9)
p-chloroaniline and anilinium hydrochloride can be distinguished by [IIT-JEE 1998]
A)
Sandmeyer reaction done
clear
B)
\[NaHC{{O}_{3}}\] done
clear
C)
\[AgN{{O}_{3}}\] done
clear
D)
Carbylamine test done
clear
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question_answer10)
In the above reaction 'X' stands for [CPMT 1986, 2001; MP PET 1992; KCET (Engg./Med.) 2000]
A)
\[N{{H}_{2}}\] done
clear
B)
\[SnC{{l}_{2}}\] done
clear
C)
Cl done
clear
D)
\[NH_{4}^{+}C{{l}^{-}}\] done
clear
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question_answer11)
\[+\,CHC{{l}_{3}}+KOH\to ?\] [BHU 2000; Pb. PMT 2000; Kerala 2003]
A)
Phenyl isocyanide done
clear
B)
Benzyl amine done
clear
C)
Benzyl chloride done
clear
D)
None of these done
clear
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question_answer12)
The order of basic strength among the following amines in benzene solution is [AIIMS 1991; RPMT 2002]
A)
\[C{{H}_{3}}N{{H}_{2}}>{{(C{{H}_{3}})}_{3}}N>{{(C{{H}_{3}})}_{2}}NH\] done
clear
B)
\[{{(C{{H}_{3}})}_{2}}NH>C{{H}_{3}}N{{H}_{2}}>{{(C{{H}_{3}})}_{3}}N\] done
clear
C)
\[C{{H}_{3}}N{{H}_{2}}>{{(C{{H}_{3}})}_{2}}NH>{{(C{{H}_{3}})}_{3}}N\] done
clear
D)
\[{{(C{{H}_{3}})}_{3}}N>C{{H}_{3}}N{{H}_{2}}>{{(C{{H}_{3}})}_{2}}NH\] done
clear
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question_answer13)
The refluxing of \[{{(C{{H}_{3}})}_{2}}NCOC{{H}_{3}}\] with acid gives [KCET 1996]
A)
\[2C{{H}_{3}}N{{H}_{2}}+C{{H}_{3}}COOH\] done
clear
B)
\[2C{{H}_{3}}OH+C{{H}_{3}}COOH\] done
clear
C)
\[{{(C{{H}_{3}})}_{2}}NH+C{{H}_{3}}COOH\] done
clear
D)
\[{{(C{{H}_{3}})}_{2}}NCOOH+C{{H}_{4}}\] done
clear
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question_answer14)
Order of basicity of ethyl amines is [MP PMT/PET 1988]
A)
Secondary > Primary > Tertiary done
clear
B)
Primary > Secondary > Tertiary done
clear
C)
Secondary > Tertiary > Primary done
clear
D)
Tertiary > Primary > Secondary done
clear
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question_answer15)
The following reaction is [KCET 1996]
A)
Nucleophilic substitution done
clear
B)
Electrophilic substitution done
clear
C)
Free radical substitution done
clear
D)
None of these done
clear
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question_answer16)
\[RN{{H}_{2}}\] reacts with \[{{C}_{6}}{{H}_{5}}S{{O}_{2}}Cl\] in aqueous \[KOH\] to give a clear solution. On acidification a precipitate is obtained which is due to the formation of [Roorkee 2000]
A)
\[R-\underset{H\,\,\,}{\overset{H\,\,}{\mathop{\underset{|\,\,\,\,}{\overset{|\,\,\,\,}{\mathop{{{N}^{+}}}}}\,}}}\,-S{{O}_{2}}{{C}_{6}}{{H}_{5}}O{{H}^{-}}\] done
clear
B)
\[R-{{N}^{-}}S{{O}_{2}}{{C}_{6}}{{H}_{5}}{{K}^{+}}\] done
clear
C)
\[R-NHS{{O}_{2}}{{C}_{6}}{{H}_{5}}\] done
clear
D)
\[{{C}_{6}}{{H}_{5}}S{{O}_{2}}N{{H}_{2}}\] done
clear
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question_answer17)
If N and S are present in an organic compound during Lassaigne test, then both changes into [CPMT 1997]
A)
\[N{{a}_{2}}S\] and \[NaCN\] done
clear
B)
NaSCN done
clear
C)
\[N{{a}_{2}}S{{O}_{3}}\] and NaCN done
clear
D)
\[N{{a}_{2}}S\] and NaCNO done
clear
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question_answer18)
The strongest base among the following is [AIIMS 2004; BHU 2004]
A)
B)
C)
D)
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question_answer19)
Nitroso amines \[({{R}_{2}}N-N=O)\] are soluble in water. On heating them with concentrated \[{{H}_{2}}S{{O}_{4}}\] they give secondary amines. The reaction is called [AFMC 1998; AIIMS 1998; BHU 2002]
A)
Perkin's reaction done
clear
B)
Fittig's reaction done
clear
C)
Sandmeyer's reaction done
clear
D)
Liebermann's nitroso reaction done
clear
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question_answer20)
A primary amine is formed an amide by the treatment of bromine and alkali. The primary amine has : [BHU 2004]
A)
1 carbon atom less than amide done
clear
B)
1 carbon atom more than amide done
clear
C)
1 hydrogen atom less than amide done
clear
D)
1 hydrogen atom more than amide done
clear
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question_answer21)
The structural formula of Indigo dye is : [DPMT 2004]
A)
B)
C)
D)
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question_answer22)
Which of the following is the strongest base ? [AIEEE 2004]
A)
B)
C)
D)
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question_answer23)
The following compound on hydrolysis in aqueous acetone will give
A)
Mixture of (K) and (L) done
clear
B)
Mixture of (K) and (M) done
clear
C)
Only (M) done
clear
D)
Only (K) done
clear
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