Organic Compounds Containing Nitrogen — DPP 1

20 NEET questions from Organic Compounds Containing Nitrogen, with answers and explanations. Attempt it as a timed test to get scoring, accuracy breakdown and mistake tracking.

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1
Which of the following is the least basic?
  1. A
  2. B
  3. C
  4. D All are equally basic
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Correct answer: A

Organic Compounds Containing Nitrogen – NEET-15595 is least basic because of presence of $-\mathrm{I} \&-\mathrm{R}\left(-\mathrm{NO}_{2}\right)$ group.
2
Hoffmann bromamide degradation reaction is shown by
  1. A $\mathrm { Ar } - \mathrm { NH } _ { 2 }$
  2. B $\mathrm { Ar } - \mathrm { CONH } _ { 2 }$
  3. C $\mathrm { Ar } - \mathrm { NO } _ { 2 }$
  4. D $\mathrm { Ar } - \mathrm { CH } _ { 2 } \mathrm { NH } _ { 2 }$
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Correct answer: B

Organic Compounds Containing Nitrogen – NEET-15541 will show Hoffmann degradation reaction.
3
Gabriel phthalimide reaction is used for the preparation of
  1. A Primary aromatic amines
  2. B Secondary amines
  3. C Aliphatic primary amines
  4. D Tertiary amines
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Correct answer: C

Gabriel phthalimide reaction $\Rightarrow 1^{\circ}$ primary amine
4
The one which is the least basic
  1. A $\mathrm { NH } _ { 3 }$
  2. B $\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 }$
  3. C $\left( \mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \right) _ { 3 } \mathrm {~N}$
  4. D $\left( \mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \right) _ { 2 } \mathrm { NH }$
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Correct answer: C

Organic Compounds Containing Nitrogen – NEET-15627 is least basic
5
A secondary amine is
  1. A A compound with two $- \mathrm { NH } _ { 2 }$ group
  2. B A compound with two carbon atoms and a $- \mathrm { NH } _ { 2 }$ group
  3. C A compound with a $- \mathrm { NH } _ { 2 }$ group on the carbon atom in number two position
  4. D A compound in which two of the hydrogens of $\mathrm { NH } _ { 3 }$ have been replaced by alkyl or aryl groups
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Correct answer: D

Organic Compounds Containing Nitrogen – NEET-15538 is secondary amine.
6
Amongst the following, the strongest base in aqueous medium is
  1. A $\mathrm { CH } _ { 3 } \mathrm { NH } _ { 2 }$
  2. B $\left( \mathrm { CH } _ { 3 } \right) _ { 3 } \mathrm {N}$
  3. C $\left( \mathrm { CH } _ { 3 } \right) _ { 2 } \mathrm { NH }$
  4. D $\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { NHCH } _ { 3 }$
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Correct answer: C

$(\mathrm{Me})_{2} \mathrm{NH}>\mathrm{MeNH}_{3}>(\mathrm{Me})_{3} \mathrm{~N}>\mathrm{Ph}(\mathrm{Me})_{2} \mathrm{~N}(\mathrm{Me}=$ methyl$)$
7
Organic Compounds Containing Nitrogen – NEET-15535 is a
  1. A Primary amine
  2. B Secondary amine
  3. C Tertiary amine
  4. D Ammonium salt
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Correct answer: A

Organic Compounds Containing Nitrogen – NEET-15535 This is primary amine.
8
A compound X has the molecular formula $\mathrm { C } _ { 7 } \mathrm { H } _ { 7 } \mathrm { NO }$. On treatment with $\mathrm { Br } _ { 2 }$ and $\mathrm { KOH }$, X gives an amine Y . The latter gives carbylamine test. Y upon diazotisation and coupling with phenol gives an azo dye. Thus X is
  1. A $\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { CONH } _ { 2 }$
  2. B $\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { CH } _ { 2 } \mathrm { NO }$
  3. C $\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { COONH } _ { 4 }$
  4. D All of these
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Correct answer: A

Organic Compounds Containing Nitrogen – NEET-15663
9
Which of the following is the weakest Bronsted base?
  1. A
  2. B
  3. C
  4. D $\mathrm { CH } _ { 3 } \mathrm { NH } _ { 2 }$
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Correct answer: A

Organic Compounds Containing Nitrogen – NEET-15593 One pair on nitrogen in conjugation.

10
Strongest base is
  1. A $\mathrm { CH } _ { 2 } = \mathrm { CH } - \mathrm { CH } _ { 2 } - \mathrm { NH } _ { 2 }$
  2. B $\mathrm { CH } \equiv \mathrm { C } - \mathrm { CH } _ { 2 } - \mathrm { NH } _ { 2 }$
  3. C $\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { NH } _ { 2 }$
  4. D
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Correct answer: C

Organic Compounds Containing Nitrogen – NEET-15628 is the strongest base among the other shown bases because of max $\mathrm{e}^{-}$density over N -atom.
11
The compound obtained by heating a mixture of a primary amine and chloroform with ethanolic potassium hydroxide is
  1. A An alkyl isocyanide
  2. B An alkyl halide
  3. C An amide
  4. D An amide and nitro compound
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Correct answer: A

Organic Compounds Containing Nitrogen – NEET-15662
12
The compound obtained by heating a mixture of a primary amine and chloroform with ethanolic potassium hydroxide is
  1. A An alkyl isocyanide
  2. B An alkyl halide
  3. C An amide
  4. D An amide and nitro compound
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Correct answer: A

Aniline gives a dye test.
13
Which is most basic?
  1. A Benzylamine
  2. B Aniline
  3. C Acetamide
  4. D o-methyl aniline
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Correct answer: A

Organic Compounds Containing Nitrogen – NEET-15587 most basic, no conjugation (lone pair not in conjugation)
14
Amines are basic in character because they have
  1. A A lone pair of electrons on the nitrogen atom
  2. B A hydroxyl group in the molecule
  3. C Replaceable hydrogen atom
  4. D Saturated C atom
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Correct answer: A

Organic Compounds Containing Nitrogen – NEET-15586 because of low pair of electron amines are basic
15
A compound ' A ' when treated with $\mathrm { HNO } _ { 3 }$ (in presence of $\mathrm { H } _ { 2 } \mathrm { SO } _ { 4 }$ ) gives compound B , which is then reduced with Sn and HCl to aniline. The compound is
  1. A Toluene
  2. B Benzene
  3. C Ethane
  4. D Acetamide
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Correct answer: B

Organic Compounds Containing Nitrogen – NEET-15584

16
The correct IUPAC name for
$\mathrm { CH } _ { 2 } = \mathrm { CH } - \mathrm { CH } _ { 2 } - \mathrm { NH } - \mathrm { CH } _ { 3 }$ is
  1. A Allyl methylamine
  2. B 2-Amino 4-pentene
  3. C 4-Aminopent-I -ene
  4. D N-Methylprop-2-en-1-amine
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Correct answer: D

Organic Compounds Containing Nitrogen – NEET-15536 N-methyl prop-2-ene 1-amine
17
Organic Compounds Containing Nitrogen – NEET-15594 The correct increasing order of basic strength for the following compounds is
  1. A II $<$ III $<$ I
  2. B III $<$ I $<$ II
  3. C III $<$ II $<$ I
  4. D II $<$ I $<$ III
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Correct answer: D

Organic Compounds Containing Nitrogen – NEET-15594
18
The decreasing order of the basic character of $\mathrm { NH } _ { 3 } , \mathrm { CH } _ { 3 } \mathrm { NH } _ { 2 } , \mathrm { C } _ { 2 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 }$ and $\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 }$ is
  1. A $\mathrm { NH } _ { 3 } > \mathrm { CH } _ { 3 } \mathrm { NH } _ { 2 } > \mathrm { C } _ { 2 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 } > \mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 }$
  2. B $\mathrm { C } _ { 2 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 } > \mathrm { CH } _ { 3 } \mathrm { NH } _ { 2 } > \mathrm { NH } _ { 3 } > \mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 }$
  3. C $\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 } > \mathrm { C } _ { 2 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 } > \mathrm { CH } _ { 3 } \mathrm { NH } _ { 2 } > \mathrm { NH } _ { 3 }$
  4. D $\mathrm { CH } _ { 3 } \mathrm { NH } _ { 2 } > \mathrm { C } _ { 2 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 } > \mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 } > \mathrm { NH } _ { 3 }$
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Correct answer: B

Organic Compounds Containing Nitrogen – NEET-15596
19
When acetamide is treated with $\mathrm { Br } _ { 2 }$ and caustic soda, then we get
  1. A Bromoacetic acid
  2. B Acetic acid
  3. C Methylamine
  4. D Ethane
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Correct answer: C

Organic Compounds Containing Nitrogen – NEET-15552
20
Aliphatic amines are $\_\_\_\_$ basic than $\mathrm { NH } _ { 3 }$ but aromatic amines are $\_\_\_\_$ basic than $\mathrm { NH } _ { 3 }$.
  1. A More, less
  2. B Less, more
  3. C More, more
  4. D None of these
Show answer & explanation

Correct answer: A

Because in aromatic amine lone pair is in conjugation with benzene ring.

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