Organic Compounds Containing Nitrogen — DPP 2

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
$- \mathrm { CONH } _ { 2 } \xrightarrow { \text { Reduction } } - \mathrm { CH } _ { 2 } \mathrm { NH } _ { 2 }$
In above reaction hybridisation state of carbon changes from
  1. A sp $\longrightarrow$ sp$^ { 2 }$
  2. B sp $\longrightarrow$ sp$^ { 3 }$
  3. C sp$^ { 2 } \longrightarrow$ sp$^ { 3 }$
  4. D sp$^ { 2 } \longrightarrow$ sp
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Correct answer: C

Organic Compounds Containing Nitrogen – NEET-15556
2
$2,4,6$-tribromo aniline is a product of
  1. A Electrophilic addition on $\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 }$
  2. B Electrophilic substitution on $\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 }$
  3. C Nucleophilic addition on $\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 }$
  4. D Nucleophilic substitution on $\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { NH } _ { 2 }$
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Correct answer: B

Organic Compounds Containing Nitrogen – NEET-15697 (2, 4,6 Tribromo aniline)
3
Reaction of nitrous acid with aliphatic primary amine in the cold gives
  1. A A diazonium salt
  2. B An alcohol
  3. C A nitrite
  4. D A dye
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Correct answer: B

Organic Compounds Containing Nitrogen – NEET-15763
4
Organic Compounds Containing Nitrogen – NEET-15894 P and S , respectively are
  1. A
  2. B
  3. C
  4. D
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Correct answer: B

Organic Compounds Containing Nitrogen – NEET-15894
5
When benzene diazonium chloride is treated with cuprous chloride and HCl the product formed is
  1. A Chlorobenzene
  2. B Benzene
  3. C Chloroazobenzene
  4. D Phenol
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Correct answer: A

Organic Compounds Containing Nitrogen – NEET-15864
6
When benzenediazonium chloride is heated with fluoro boric acid, fluorobenzene is formed. This reaction is called
  1. A Balz Schiemann reaction
  2. B Gattermann reaction
  3. C Sandmeyer reaction
  4. D Hofmann bromamide reaction
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Correct answer: A

Organic Compounds Containing Nitrogen – NEET-15807 This is Balz Schiemann reaction.
7
$\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { NH } _ { 2 }$ is more basic than $\mathrm { CH } _ { 3 } \mathrm { CONH } _ { 2 }$ because
  1. A Acetamide is amphoteric in character
  2. B In $\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { NH } _ { 2 }$ the electron pair on N -atom is delocalised by resonance
  3. C In $\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { NH } _ { 2 }$ there is no resonance, while in acetamide the lone pair of electrons on N -atom is delocalised and therefore less available for protonation
  4. D Acetamide is derivative of acid
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Correct answer: C

Lone pair of nitrogen in conjugation with $\pi$ bond i.e., ( $\pi$-LP conjugation)
Organic Compounds Containing Nitrogen – NEET-15629
8
An amine reacts with $\mathrm { C } _ { 6 } \mathrm { H } _ { 5 } \mathrm { SO } _ { 2 } \mathrm { Cl }$ and the product is soluble in alkali, amine is
  1. A $1 ^ { \circ }$ amine
  2. B $2 ^ { \circ }$ amine
  3. C $3 ^ { \circ }$ amine
  4. D All of these
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Correct answer: A

Organic Compounds Containing Nitrogen – NEET-15673
9
The end product (Z) of the following reaction is
Organic Compounds Containing Nitrogen – NEET-15872
  1. A A cyanide
  2. B A carboxylic acid
  3. C An amine
  4. D An arene
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Correct answer: D

Organic Compounds Containing Nitrogen – NEET-15872
10
Benzenediazonium chloride on reaction with phenol in weakly basic medium gives
  1. A Diphenyl ether
  2. B p-Hydroxyazobenzene
  3. C Chlorobenzene
  4. D Benzene
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Correct answer: B

Organic Compounds Containing Nitrogen – NEET-15792
11
An organic compound (A) on reduction gave a compound (B). Upon treatment with $\mathrm { HNO } _ { 2 }$, (B) gave ethyl alcohol and on warming with $\mathrm { CHCl } _ { 3 }$ and alcoholic KOH , (B) gave an offensive smell. The compound $( \mathrm { A } )$ is
  1. A $\mathrm { CH } _ { 3 } \mathrm { NH } _ { 2 }$
  2. B $\mathrm { CH } _ { 3 } \mathrm { NC }$
  3. C $\mathrm { CH } _ { 3 } \mathrm { CN }$
  4. D $\mathrm { C } _ { 2 } \mathrm { H } _ { 5 } \mathrm { CN }$
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Correct answer: C

Organic Compounds Containing Nitrogen – NEET-15664
12
Consider the following reaction Ethanamine $\xrightarrow [ \text { Base } ] { \mathrm { A } } \mathrm { N } -$ Ethylbenzamide A is
  1. A
  2. B $\mathrm { Ph } - \mathrm { Cl }$
  3. C
  4. D
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Correct answer: D

Organic Compounds Containing Nitrogen – NEET-15875
13
Best method for preparing primary amines from alkyl halides without changing the number of carbon atoms in the chain is
  1. A Hoffmann bromamide reaction
  2. B Gabriel phthalimide synthesis
  3. C Sandmeyer reaction
  4. D Reaction with NH₃
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Correct answer: B

$1^{\circ}$ amine can be prepared by Gabriel phthalimide reaction.
14
Which one of the following is the strongest base?
  1. A Benzenamine
  2. B Phenylmethanamine
  3. C N-Methylaniline
  4. D N,N-Dimethylaniline
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Correct answer: B

Order of basic character :
Organic Compounds Containing Nitrogen – NEET-15920
15
Bromine water reacts with aniline to give
  1. A o-Bromoaniline
  2. B m-Bromoaniline
  3. C p-Bromoaniline
  4. D 2, 4, 6-Tribromoaniline
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Correct answer: D

Organic Compounds Containing Nitrogen – NEET-15687 (2, 4,6 Tribromo anilne)
16
The strongest ortho-para and strongest meta directing groups are respectively
  1. A $- \mathrm { NO } _ { 2 }$ and $- \mathrm { NH } _ { 2 }$
  2. B $- \mathrm { CONH } _ { 2 }$ and $- \mathrm { NH } _ { 2 }$
  3. C $- \mathrm { NH } _ { 2 }$ and $- \mathrm { NO } _ { 2 }$
  4. D $- \mathrm { NH } _ { 2 }$ and $\mathrm { CONH } _ { 2 }$
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Correct answer: C

$-\mathrm{NH}_{2} \Rightarrow$ Strongest o/p directing → because of +R nature
$-\mathrm{NO}_{2} \Rightarrow$ Strongest $m$ directing → because of -R nature
17
Which of the following forms a stable diazonium salt at $273 - 278 \mathrm {~K}$ ?
  1. A Ethylamine
  2. B Aniline
  3. C Dimethylamine
  4. D Benzylamine
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Correct answer: B

Organic Compounds Containing Nitrogen – NEET-15762
18
A mixture of $1 ^ { \circ } , 2 ^ { \circ }$ and $3 ^ { \circ }$ amines can be separated by Hinsberg's reagent which is
  1. A Benzoyl chloride
  2. B Acetyl chloride
  3. C Benzene sulphonyl chloride
  4. D Benzyl chloride
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Correct answer: C

Hinsberg's reagent
Organic Compounds Containing Nitrogen – NEET-15682 Benzene sulphonyl chloride
19
Organic Compounds Containing Nitrogen – NEET-15695 Identify X in the series.
  1. A
  2. B
  3. C
  4. D
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Correct answer: B

Organic Compounds Containing Nitrogen – NEET-15695
20
Which of the following reactions gives Acetamide?
  1. A Hydrolysis of $\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CH } _ { 2 } \mathrm { CN }$
  2. B Heating $\mathrm { CH } _ { 3 } \mathrm { COOH }$ with $\mathrm { NH } _ { 3 }$ followed by further heating
  3. C Reaction of $\mathrm { CH } _ { 3 } \mathrm { CH } _ { 2 } \mathrm { CN }$ with $\mathrm { LiAlH } _ { 4 }$ followed by $\mathrm { H } _ { 2 } \mathrm { O }$
  4. D Reaction of $\mathrm { CH } _ { 3 } \mathrm { CN }$ with $\mathrm { Na } ( \mathrm { Hg } )$ and $\mathrm { C } _ { 2 } \mathrm { H } _ { 5 } \mathrm { OH }$
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Correct answer: B

Organic Compounds Containing Nitrogen – NEET-15929

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