Tag: organic compounds with functional group containing nitrogen

Questions Related to organic compounds with functional group containing nitrogen

How may total structural isomers of $3^o$ amines are possible with the molecular formula $C _6H _{15}N$

isomerism of amines organic compounds with functional group containing nitrogen

  1. 4

  2. 7

  3. 6

  4. 5

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Correct Option: B

 Many amines, in the liquid state, have odors resembling that of:

isomerism of amines organic compounds with functional group containing nitrogen

  1. garlic

  2. raw fish

  3. roses

  4. skunks

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Correct Option: B
Explanation:

Many amines in liquid state have odour resem bling that of raw fish. As raw fish also have anime compounds in it. 

Which of the following is a not a primary amine?

isomerism of amines organic compounds with functional group containing nitrogen

  1. Benzedrine

  2. Methedrine

  3. Fastin

  4. None, they are all primary amines

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Correct Option: B

Which of the following statements concerning cyclic amines is correct?

isomerism of amines organic compounds with functional group containing nitrogen

  1. they can never be primary amines

  2. they are mostly aromatic compounds

  3. they can be primary or secondary amines but never tertiary amines

  4. they are only found as naturally-occurring compounds

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Correct Option: A
Explanation:

Cyclic amines can never be primary amines, as their valency is already satisfied (2 of its valency) by the carbon chain.

In production of phenyl amine, it is separated from reaction mixture by process of :

isomerism of amines organic compounds with functional group containing nitrogen

  1. steam distillation

  2. extraction

  3. sublimation

  4. evaporation

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Correct Option: A
Explanation:

Phenyl amines are prepared by steam distillation process. Amines are generally prepared by steam distillation process because of their volatility.

What is the basis for classifying amines as primary, secondary, or tertiary?

isomerism of amines organic compounds with functional group containing nitrogen

  1. The number of carbon atoms bonded directly to the nitrogen atom

  2. The number of carbon atoms bonded to a carbon bearing nitrogen

  3. The number of nitrogen atoms present

  4. The number of hydrogen atoms present

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Correct Option: A
Explanation:

Basic criteria for classifing amines as primary, secondary or tertiary is that chow much number of carbon atom bonded directly nitrogen atom.

If three carbon directly attached then ${ 3 }^{ 0 }$ amine
If two carbon directly attached then ${ 2 }^{ 0 }$ amine
If one carbon directly attached then ${ 1 }^{ 0 }$ amine

Which of the following is not a heterocyclic aliphatic amine?

isomerism of amines organic compounds with functional group containing nitrogen

  1. piperidine

  2. pyrrolidine

  3. pyrimidine

  4. They are all heterocyclic aliphatic amines

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Correct Option: C
Explanation:

Pyrimidine is a heterocyclic aromatic amine.

The common name for the compound $CH _3CH _2CH _2NH _2$ is:

isomerism of amines organic compounds with functional group containing nitrogen

  1. propylamine

  2. N-propylamine

  3. aminopropane

  4. N-aminopropane

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Correct Option: A
Explanation:

$C{ H } _{ 3 }C{ H } _{ 2 }C{ H } _{ 2 }N{ H } _{ 2 }$

As it contains three saturated carbon chain and ${ 1 }^{ 0 }$  amine. So its name is propylamine propyl for $C{ H } _{ 3 }C{ H } _{ 2 }C{ H } _{ 2 }$ group.

A quartenary ammonium salt has.................. alkyl or aryl Bonds to nitrogen atom

isomerism of amines organic compounds with functional group containing nitrogen

  1. 4

  2. 3

  3. 2

  4. 1

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Correct Option: A
Explanation:

A quartenary ammonium salt has four alkyl or aryl Bonds to nitrogen atom. Hence option A is correct.

In the given example B,C and B,D are :

(a) $CH _3-CH _2-CH _2 - CH _2NH _2$
Butanamine $(1^o)$

(b) $CH _3-CH _2-\overset{NH _2}{\overset{|}{C}H} - CH _3$ 
Butan-2-amine $(1^o)$

(c) $CH _3-\overset{CH _3}{\overset{|}{C}H} - CH _2-NH _2$
2-Methylpropanamine $(1^o)$

(d) $CH _3-\!\!\!\!\underset{\quad CH _3}{\underset{|}{\overset{\quad CH _3}{\overset{|}{C}}}\!\!\!\!-}NH _2$
2-methylpropan-2-amine $(1^o)$

(e) $CH _3-CH _2-CH _2-NH - CH _3$
N-methylpropanamine $(2^o)$

isomerism of amines organic compounds with functional group containing nitrogen

  1. Positional isomers

  2. Chain isomers

  3. Functional isomers

  4. Metamers

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Correct Option: B
Explanation:

B,C and B,D are exbhits chain isomerism as the pairs are differed in their longest chain. Hence option B is correct.