Organic Compounds Containing Nitrogen — DPP 3

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 among the following is most basic in nature?
  1. A
  2. B
  3. C
  4. D
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Correct answer: C

Lone pair of N -atom is occupying sp$^{3}$ hybrid orbital in
Organic Compounds Containing Nitrogen – NEET-15985 and $\mathrm{sp}^{2}$ hybrid orbital in
Organic Compounds Containing Nitrogen – NEET-15985
2
Aniline on reaction with acetyl chloride gives
  1. A Phenol
  2. B Acetamide
  3. C Acetanilide
  4. D Benzene
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Correct answer: C

Organic Compounds Containing Nitrogen – NEET-15746
3
Diazotisation can be carried out by the action of $\mathrm { NaNO } _ { 2 }$ and dilute HCl at ice cold temperature on
  1. A Aromatic secondary amine
  2. B Aromatic primary amine
  3. C Aromatic nitro compound
  4. D Aliphatic amine
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Correct answer: B

Organic Compounds Containing Nitrogen – NEET-15862
4
Which product is formed, when acetonitrile is hydrolysed partially with cold concentrated HCl ?
  1. A Methyl cyanide
  2. B Acetic anhydrides
  3. C Acetic acid
  4. D Acetamide
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Correct answer: D

Organic Compounds Containing Nitrogen – NEET-16080
5
The correct increasing order of basic strength for the following compounds is
Organic Compounds Containing Nitrogen – NEET-15998
  1. A (III) $<$ (II) $<$ (I)
  2. B (II) $<$ (III) $<$ (I)
  3. C (II) $<$ (I) $<$ (III)
  4. D (I) $<$ (III) $<$ (II)
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Correct answer: A

Organic Compounds Containing Nitrogen – NEET-15998 Basic strength $\mathrm{I}>\mathrm{II}>\mathrm{III}$
6
Arrange the following compound in decreasing order of boiling point
  1. A $\left( \mathrm { CH } _ { 3 } \right) _ { 3 } \mathrm {N} < \mathrm { CH } _ { 3 } \mathrm { NHC } _ { 2 } \mathrm { H } _ { 5 } < \mathrm { C } _ { 3 } \mathrm { H } _ { 7 } \mathrm { NH } _ { 2 } < \mathrm { C } _ { 3 } \mathrm { H } _ { 7 } \mathrm { OH }$
  2. B $\left( \mathrm { CH } _ { 3 } \right) _ { 3 } \mathrm {N} < \mathrm { C } _ { 3 } \mathrm { H } _ { 7 } \mathrm { NH } _ { 2 } < \mathrm { C } _ { 3 } \mathrm { H } _ { 7 } \mathrm { OH } < \mathrm { CH } _ { 3 } \mathrm { NHC } _ { 2 } \mathrm { H } _ { 5 }$
  3. C $\mathrm { C } _ { 3 } \mathrm { H } _ { 7 } \mathrm { NH } _ { 2 } < \mathrm { CH } _ { 3 } \mathrm { NHC } _ { 2 } \mathrm { H } _ { 5 } < \left( \mathrm { CH } _ { 3 } \right) _ { 3 } \mathrm {N} < \mathrm { C } _ { 3 } \mathrm { H } _ { 7 } \mathrm { OH }$
  4. D $\begin{array} { l } \left( \mathrm { CH } _ { 3 } \right) _ { 3 } \mathrm {N} < \mathrm { CH } _ { 3 } \mathrm { NHC } _ { 2 } \mathrm { H } _ { 5 } < \mathrm { C } _ { 3 } \mathrm { H } _ { 7 } \mathrm { OH } < \\ \mathrm { CH } _ { 3 } \mathrm { H } _ { 7 } \mathrm { NH } _ { 2 } \end{array}$
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Correct answer: A

$\frac{\left(\mathrm{CH}_{3}\right)_{3} \mathrm{~N}<\mathrm{CH}_{3} \mathrm{NHC}_{2} \mathrm{H}_{5}<\mathrm{C}_{3} \mathrm{H}_{7} \mathrm{NH}_{2}<\mathrm{C}_{3} \mathrm{H}_{7} \mathrm{OH}}{\text { Boiling point order }}$
7
The reaction of the benzyl chloride with sodium cyanide followed by reduction with hydrogen in the presence of nickel gives
  1. A β-phenyl ethylamine
  2. B N -isobutylaniline
  3. C Benzyl amine
  4. D Aniline
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Correct answer: A

Organic Compounds Containing Nitrogen – NEET-16005
8
Amines are highly soluble in
  1. A $\mathrm { CCl } _ { 4 }$
  2. B Diethyl ether
  3. C Benzene
  4. D Water
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Correct answer: D

Amines are highly soluble in H₂O because of hydrogen bonding.
9
When benzamide is treated with $\mathrm { Br } _ { 2 }$ in presence of aqueous KOH then the end product formed is
  1. A
  2. B
  3. C
  4. D
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Correct answer: B

Organic Compounds Containing Nitrogen – NEET-15981
10
$\mathrm { CH } _ { 3 } \mathrm { NHCH } _ { 3 }$ and $\left( \mathrm { CH } _ { 3 } \right) _ { 3 } \mathrm {~N}$ can be chemically distinguished by
  1. A Carbylamine test
  2. B Benedict test
  3. C Hinsberg's reagent
  4. D Lucas test
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Correct answer: C

$2^{\circ}$-amine $\mathrm{CH}_{3} \mathrm{NHCH}_{3}$ reacts with Hinsberg's reagent (or, benzenesulphonyl chloride).
11
In the following reactions
$\text { Acetanilide } \frac { \mathrm { CH } _ { 2 } } { \mathrm { CH } _ { 3 } \mathrm { COOH } } \mathrm { C } \text { (major) } \xrightarrow { \mathrm { H } ^ { + } } \mathrm { D } \text {. }$ D is
  1. A 2-Bromoaniline
  2. B 3-Bromoaniline
  3. C 4-Bromoaniline
  4. D 2, 4, 6-Tribromoaniline
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Correct answer: C

Organic Compounds Containing Nitrogen – NEET-15957
12
Solubility of amines in water decreases with increase in molar mass of amines due to
  1. A Formation of hydrogen bonds with water molecules
  2. B Increase in hydrophilic part
  3. C Increase in size of the hydrophobic alkyl part
  4. D Decrease in size of hydrophobic alkyl part
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Correct answer: C

Solubility of amines in water decreases with increase in molar mass of amines due to increase in size of the hydrophobic alkyl part.
13
In the reaction
Organic Compounds Containing Nitrogen – NEET-15935 Compound A and appropriate pH range, respectively, are
  1. A pH = 4 to 5
  2. B pH = 9 to 10
  3. C pH = 9 to 10
  4. D pH = 4 to 5
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Correct answer: C

Organic Compounds Containing Nitrogen – NEET-15935
14
When benzyl amine is treated with chloroform in presence of ethanolic potassium hydroxide solution then the product formed is
  1. A
  2. B
  3. C
  4. D
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Correct answer: C

Organic Compounds Containing Nitrogen – NEET-15993
15
The compound having the molecular formula $\mathrm { C } _ { 3 } \mathrm { H } _ { 9 } \mathrm {N}$ can represent
  1. A Trimethylamine
  2. B n-propylamine
  3. C Isopropylamine
  4. D All of these
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Correct answer: D

$\mathrm{C}_{3} \mathrm{H}_{9} \mathrm{N}$ may be trimethylamine or n-propylamine or may be isopropylamine.
16
Benzenediazonium chloride is reduced to benzene by
  1. A Water
  2. B Hypophosphorous acid
  3. C Hypophosphoric acid
  4. D Phosphine
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Correct answer: B

Organic Compounds Containing Nitrogen – NEET-15808
17
Benzylamine and aniline can be distinguished by
  1. A $\mathrm { HNO } _ { 2 }$ acid
  2. B $\mathrm { CHCl } _ { 3 } / \mathrm { KOH }$
  3. C $\mathrm { Br } _ { 2 }$ water
  4. D Schiff's reagent
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Correct answer: C

Organic Compounds Containing Nitrogen – NEET-16039
18
Which compound will not react with Hinsberg's reagent?
  1. A
  2. B
  3. C
  4. D
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Correct answer: D

Tertiary amine
Organic Compounds Containing Nitrogen – NEET-15990 will not react with Hinsberg's reagent $\left(\mathrm{C}_{6} \mathrm{H}_{5} \mathrm{SO}_{2} \mathrm{Cl}\right)$ due to absence of H -atom at Nitrogen.
19
Which one of the following on reduction with lithium aluminium hydride yields a secondary amine?
  1. A Methyl isocyanide
  2. B Acetamide
  3. C Methyl cyanide
  4. D Nitroethane
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Correct answer: A

Organic Compounds Containing Nitrogen – NEET-16004
20
Organic Compounds Containing Nitrogen – NEET-16096 Product G is
  1. A
  2. B
  3. C
  4. D
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Correct answer: C

Organic Compounds Containing Nitrogen – NEET-16096

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