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Standard XII
Chemistry
Classification of Amines
Question

Which of the following is a 1o amine?
  1. C6H5NHCH3
  2. (CH3CH2)2NCH3
  3. CH3NHCH(CH3)2
  4. (CH3)3CNH2

A
C6H5NHCH3
B
CH3NHCH(CH3)2
C
(CH3)3CNH2
D
(CH3CH2)2NCH3
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Solution
Verified by Toppr

In a one degree amine, only one hydrogen atom of NH3 is replaced by alkyl group.

So, A is correct because one of the hydrogens has been replaced by (CH3)3C− group.

General formula for primary amine is RNH2

Note that the kind of alkyl group does not matter in deciding the type of amine, what matters is the number of hydrogen replaced.

Option A is correct.

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Similar Questions
Q1
Arrange the following in the decreasing order of basic strength:
i) C6H5NH2
ii) C6H5NHCH3
iii) C6H5CH2NH2
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Q2
Arrange the following in the increasing order of basic strength:
i) C6H5NH2
ii) C6H5NHCH3
iii) C6H5CH2NH2
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Q3
C6H5CONHCH3 can be converted into C6H5CH2NHCH3 by?
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Q4
Arrange the following in the increasing order of the pKb values:
i) C2H5NH2
ii)C6H5NHCH3
iii)(C2H5)2NH
iv) C6H5NH2

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Q5
In the given compound A,C and A,D are exbhits which of the following isomerism :
(a) CH3−CH2−CH2−CH2NH2
Butanamine (1o)

(b) CH3−CH2−NH2|CH−CH3
Butan-2-amine (1o)

(c) CH3−CH3|CH−CH2−NH2
2-Methylpropanamine (1o)

(d) CH3−CH3|C|−CH3NH2
2-methylpropan-2-amine (1o)

(e) CH3−CH2−CH2−NH−CH3
N-methylpropanamine (2o)

View Solution