JEE CHEMISTRY MCQ: AMINES

1 Medium

1 of 1

Analyzing +4 | -1

Statement-I: The presence of amino group can be detected by the azo dye test.

Statement-II: Amino group of a

2^{\circ}

amine is diazotized with

\mathrm{HNO}_2

and

\mathrm{NaCl}

0^{\circ} \mathrm{C}

which gives a red coloured dye with p-naphthol.

View answer and explanation

Correct option: C

Statement I is correct but statement II is incorrect

Option C is correct. Statement I is correct because the azo dye test detects amino groups. Statement II is incorrect because the azo dye test is primarily for 1° aromatic amines, not 2° amines.

More Questions from AMINES

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Identify '

\mathrm{Z}

' in the sequence

{{\text{C}}_6}{{\text{H}}_5}{\text{N}}{{\text{H}}_2}\xrightarrow{{{\text{NaN}}{{\text{O}}_2} + {\text{HCl}}}}{\text{X}}\xrightarrow{{{\text{CuCN}}}}{\text{Y}}\xrightarrow{{{{\text{H}}^ + }/{{\text{H}}_2}{\text{O}}}}{\text{Z}}

The primary, secondary and tertiary amines can be distinguished by: Assertion: The main product of reaction of alcoholic silver nitrite and ethyl bromide is nitroethane.

Reason: Silver nitrite is predominantly covalent compound. Hofmann’s bromamide reaction is to convert Gabriel phthalamide synthesis is used for preparation of :- Elements found in explosive are: