Among the following,
I. $C H_{3} N H_{2}$
II. $(C H_{3})_{2} N H$
III. $(C H_{3})_{3} N$
IV. $C_{6} H_{5} N H_{2}$
Which will give the positive carbylamine test?

I and II only

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I and IV only

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II and IV only

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II and III only

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Solution

The correct option is B I and IV only
$C H_{3} N H_{2}$ Methylamine and $C_{6} H_{5} N H_{2}$ Aniline are both primary amines( $R - N H_{2}$ ).

Positive Carbylamine test is given primary amines, which is indicated by the release of foul smell of isocyanides formed in the presence of chloroform and $a l c . K O H$ .

Option B is correct.

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Among the following, I. CH3NH2II. (CH3)2NHIII. (CH3)3NIV. C6H5NH2Which will give the positive carbylamine test?

The correct option is B I and IV onlyCH3NH2 Methylamine and C6H5NH2 Aniline are both primary amines(R−NH2). Positive Carbylamine test is given primary amines, which is indicated by the release of foul smell of isocyanides formed in the presence of chloroform and alc. KOH .Option B is correct.

Among the following,
I. $C H_{3} N H_{2}$
II. $(C H_{3})_{2} N H$
III. $(C H_{3})_{3} N$
IV. $C_{6} H_{5} N H_{2}$
Which will give the positive carbylamine test?