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Standard XII

Chemistry

Metamerism

Which of the ...

Question

Which of the following is secondary amine?

{C H_{3} - N H}_{2}

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C H_{3}

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C H_{3} - N H C H_{3}

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C H_{3} - N (C H_{3})_{2}

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Solution

The correct option is A $C H_{3} - N H C H_{3}$
In secondary amine, 2 alkyl groups and one hydrogen atom are directly attached to N atom.

It is represented by general formula $R_{2} N H$ .

$C H_{3} - N H C H_{3}$ represents $R - N H - R$ .

Hence, option C is correct.

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Similar questions

Q. In the given compound A,C and A,D are exbhits which of the following isomerism :

(a)

C H_{3} - C H_{2} - C H_{2} - C H_{2} N H_{2}

Butanamine

(1^{o})

(b)

C H_{3} - C H_{2} - N H_{2} | C H - C H_{3}

Butan-2-amine

(1^{o})

(c)

C H_{3} - C H_{3} | C H - C H_{2} - N H_{2}

2-Methylpropanamine

(1^{o})

(d)

C H_{3} - C H_{3} | C | - C H_{3} N H_{2}

2-methylpropan-2-amine

(1^{o})

(e)

C H_{3} - C H_{2} - C H_{2} - N H - C H_{3}

N-methylpropanamine

(2^{o})

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

(a)

C H_{3} - C H_{2} - C H_{2} - C H_{2} N H_{2}

Butanamine

(1^{o})

(b)

C H_{3} - C H_{2} - N H_{2} | C H - C H_{3}

Butan-2-amine

(1^{o})

(c)

C H_{3} - C H_{3} | C H - C H_{2} - N H_{2}

2-Methylpropanamine

(1^{o})

(d)

C H_{3} - C H_{3} | C | - C H_{3} N H_{2}

2-methylpropan-2-amine

(1^{o})

(e)

C H_{3} - C H_{2} - C H_{2} - N H - C H_{3}

N-methylpropanamine

(2^{o})

Q. Write the IUPAC names of the following amines.

C H_{3}

-

C H_{2}

-

C H

-

C H_{3}

|

N H_{2}

(e)

C H_{3} - C H_{2} - C H_{2} - N H - C H_{3}

N-Methylpropanamine

(2^{o})

(f)

C H_{3} - C H_{2} N H - C H_{2} C H_{3}

N-Ethylethanamine

(2^{o})

(g)

C H_{3} - C H_{3} | C H - N H - C H_{3}

N-Methylpropan-2-amine

(2^{o})

(h)

C H_{3} - C H_{2} - C H_{3} | N - C H_{3}

N, N-Dimethylethanamine

(3^{o})

In the given compound E,F and F,G are :

C H_{3} - N H_{2}

C H_{3} - N H - C H_{3}

C H_{3} - N | C H_{3} - C H_{3}

I II III

Compare boiling points of the given compounds:

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Which of the following is secondary amine?

The correct option is A CH3−NHCH3In secondary amine, 2 alkyl groups and one hydrogen atom are directly attached to N atom. It is represented by general formula R2NH.CH3−NHCH3 represents R−NH−R.Hence, option C is correct.

The correct option is A $C H_{3} - N H C H_{3}$
In secondary amine, 2 alkyl groups and one hydrogen atom are directly attached to N atom.

It is represented by general formula $R_{2} N H$ .

$C H_{3} - N H C H_{3}$ represents $R - N H - R$ .

Hence, option C is correct.