List of top Chemistry Questions on Amines asked in JEE Main

An organic compound (P) on treatment with aqueous ammonia under hot condition forms compound (Q) which on heating with Br₂ and KOH forms compound (R) having molecular formula C₆H₇N. Names of P, Q and R respectively are.

Benzene undergoes the following sequence of reactions:

Find the percentage of nitrogen in compound $ (E) $.

Which of the following reaction is correctly matched with their product ?

Observe the following reaction sequence:
\text{(P) }\xrightarrow{\text{NH}_3, \Delta} \text{(Q)} \xrightarrow{\text{Br}_2, \text{KOH}} \text{(R)}
Which of the following is the correct structure for P, Q, and R?

Statement-I : $\text{KMnO}_4 \xrightarrow{\Delta} \text{NH}_2$ followed by $\text{Br}_2/\text{KOH} \rightarrow \text{NH}_2$.
Statement-II : $\text{CH}_3\text{NH}_2 \xrightarrow{(i) \text{ Br}_2/\text{H}_2\text{O}, (ii) \text{ NaNO}_2/\text{HCl}, (iii) \text{ H}_3\text{PO}_2/\Delta} \text{CH}_3\text{Br}$.

The correct order of basicity for the following molecules is:

Identify the inorganic sulphides that are yellow in colour:
(A) $ ({NH}_4)_2{S} $
(B) $ {PbS} $
(C) $ {CuS} $
(D) $ {As}_2{S}_3 $
(E) $ {As}_2{S}_5 $
Choose the correct answer from the options given below:

Identify correct statements:
(A) Primary amines do not give diazonium salts when treated with ${NaNO}_2$ in acidic condition.
(B) Aliphatic and aromatic primary amines on heating with ${CHCl}_3$ and ethanolic ${KOH}$ form carbylamines.
(C) Secondary and tertiary amines also give carbylamine test.
(D) Benzenesulfonyl chloride is known as Hinsberg’s reagent.
(E) Tertiary amines react with benzenesulfonyl chloride very easily.
Choose the correct answer from the options given below:

Identify product [A], [B], and [C] in the following reaction sequence.

The product B formed in the following reaction sequence is: $$ {C}_6{H}_5{CN} \xrightarrow{{HCl}} (A) \xrightarrow{{AgCN}} (B) $$

Which of the following amine(s) show(s) positive carbamylamine test?

Consider an elementary reaction: \[ A(g) + B(g) \rightarrow C(g) + D(g) \] If the volume of the reaction mixture is suddenly reduced to $ \frac{1}{3} $ of its initial volume, the reaction rate will become $ x $ times of the original reaction rate. The value of $ x $ is:

The purification method based on the following physical transformation is: \[ {Solid} \xrightarrow{{Heat}} {Vapour} \xrightarrow{{Cool}} {Solid} \]

The major product of the following reaction is:

The correct order of basic strength of the following molecules is:
(A) $\text{C}_6\text{H}_4\text{NH}_2\text{O}$
(B) $\text{C}_6\text{H}_4\text{NH}_2\text{MeO}$
(C) $\text{C}_6\text{H}_4\text{NH}_2\text{NO}_2$
(D) $\text{C}_6\text{H}_4\text{NH}_2\text{CH}_3$

The descending order of basicity of following amines is :

Choose the correct answer from the options given below :

The total number of compounds from below when treated with hot KMnO4 giving benzoic acid is:

Identify correct statements: (A) Primary amines do not give diazonium salts when treated with ${NaNO}_2$ in acidic condition.
(B) Aliphatic and aromatic primary amines on heating with ${CHCl}_3$ and ethanolic ${KOH}$ form carbylamines.
(C) Secondary and tertiary amines also give carbylamine test.
(D) Benzenesulfonyl chloride is known as Hinsberg’s reagent.
(E) Tertiary amines react with benzenesulfonyl chloride very easily.
Choose the correct answer from the options given below:

Total number of molecules/species from the following which will be paramagnetic is ………. \[ O_2, O_2^+, O_2^-, NO, NO_2, CO, K_2[NiCl_4], [Co(NH_3)_6]Cl_3, K_2[Ni(CN)_4] \]

Statement-I : Aniline on reaction with concentrated $H_2SO_4$ at 475 K gives p-amino benzene sulphonic acid. This gives blood red colour with Lassaigne’s test.
Statement-II : Aniline forms a salt with anhydrus $AlCl_3$ in Friedel Craft’s reaction.

Identify A and B in the following reaction sequence.

The azo-dye (Y) formed in the following reactions is: Sulphanilic acid + NaNO$_2$ + CH$_3$COOH → X

Given below are two statements:
Statement I: Aniline reacts with con. $ H_2SO_4 $ followed by heating at 453–473 K gives p-aminobenzene sulphonic acid, which gives blood red colour in the 'Lassaigne's test'.
Statement II: In Friedel-Craft's alkylation and acylation reactions, aniline forms salt with the $ AlCl_3 $ catalyst. Due to this, nitrogen of aniline acquires a positive charge and acts as a deactivating group.
In the light of the above statements, choose the correct answer from the options given below:

A compound ($ x $) with molar mass $ 108 \, \text{g mol}^{-1} $ undergoes acetylation to give a product with molar mass $ 192 \, \text{g mol}^{-1} $. The number of amino groups in the compound ($ x $) is ______.

Given below are two statements:
Statement (I) : All the following compounds react with p-toluenesulfonyl chloride.
$C_6H_5NH_2 \quad (C_6H_5)_2NH \quad (C_6H_5)_3N$
Statement (II) : Their products in the above reaction are soluble in aqueous NaOH.
In the light of the above statements, choose the correct answer from the options given below.