Compounds Containing Nitrogen — JEE Main PYQs

Three isomers $\mathrm{A},\mathrm{B}$ and $\mathrm{C}(\mathrm{mol}$ formula ${\mathrm{C}}_8{\mathrm{H}}_{11}\mathrm{N})$ give the following results:

$R$ has lower boiling point than $S$ …

Which of the following compounds can be prepared in good yield by Gabriel phthalimide synthesis?

The increasing order of basicity of the following compounds is:

The most appropriate reagent for conversion of $\mathrm{C}{}_2\mathrm{H}{}_5\mathrm{CN}$ into $\mathrm{CH}{}_3\mathrm{CH}{}_2\mathrm{CH}{}_2\mathrm{NH}{}_2$ is:

The increasing order of ${\mathrm{pK}}_{\mathrm{b}}$ values of the following compounds is:

I (see structure)
II (see structure)
III (see structure)
IV (see structure)

In the following reaction sequence, $[\mathrm{C}]$ is:

Coupling of benzene diazonium chloride with 1-naphthol in alkaline medium will give:

In the following compounds, the decreasing order of basic strength will be:

An organic compound 'X' showing the following solubility profile is:

Which of the following amines can be prepared by Gabriel phthalimide reaction?

Aniline dissolved in dilute HCl is reacted with sodium nitrite at $0^{\circ }\mathrm{C}$. This solution was added dropwise to a solution containing equimolar mixture of aniline and phenol in dil. HCl . The structure of the major product is:

The major product formed in the reaction given below will be:

A compound ' $X$ ' on treatment with ${\mathrm{Br}}_2/\mathrm{NaOH}$, provided ${\mathrm{C}}_3{\mathrm{H}}_9\mathrm{N}$, which gives positive carbylamine test. Compound ' X ' is:

The increasing order of the ${\mathrm{pK}}_{\mathrm{b}}$ of the following compound is :

Which of the following is NOT a correct method of the preparation of benzylamine from cyanobenzene?

The increasing order of reactivity of the following compounds towards reaction with alkyl halide directly is:

Benzene diazonium chloride on reaction with aniline in the presence of dilute hydrochloric acid gives :

The major product of the following reaction is:

(i) ${\mathrm{NaNO}}_2/{\mathrm{H}}^{+}$
(ii) ${\mathrm{CrO}}_3/{\mathrm{H}}^{+}$
(iii) ${\mathrm{H}}_2{\mathrm{SO}}_4$ (conc.), $\Delta$

Hinsberg's reagent is:

The increasing basicity order of the following compounds is
(1) $\mathrm{CH}{}_3\mathrm{CH}{}_2\mathrm{NH}{}_2$
(2) (see structure)
(3) (see structure)
(4) (see structure)

Arrange the following amine in the decreasing order of basicity:

The compounds A and B in the following reaction are, respectively

Ethylamine $\left({\mathrm{C}}_2{\mathrm{H}}_5{\mathrm{NH}}_2\right)$ can be obtained from N -ethylphthalimide on treatment with:

The increasing order of basicity of the following compounds is :
(a) (see structure)
(b) (see structure)
(c) (see structure)
(d) (see structure)

In the reaction:

the product E is

On heating an aliphatic primary amine with chloroform and ethanolic potassium hydroxide, the organic compound formed is:

Considering the basic strength of amines in aqueous solution, which one has the smallest pKb value?

The gas leaked from a storage tank of the Union Carbide plant in Bhopal gas tragedy was:

In the chemical reactions,

the compounds ' A ' and ' B ' respectively are

Toluene is nitrated and the resulting product is reduced with tin and hydrochloric acid. The product so obtained is diazotised and then heated with cuprous bromide. The reaction mixture so formed contains

In the chemical reaction,
${\mathrm{CH}}_3{\mathrm{CH}}_2{\mathrm{NH}}_2-{\mathrm{CHCl}}_3+3\mathrm{KOH}⟶(\mathrm{A})+(\mathrm{B})+3{\mathrm{H}}_2\mathrm{O}$, the compound $(\mathrm{A})$ and (B) are respectively

Which one of the following is the strongest base in aqueous solution?

Fluorobenzene $\left({\mathrm{C}}_6{\mathrm{H}}_5\mathrm{F}\right)$ can be synthesized in the laboratory

Which one of the following methods is neither meant for the synthesis nor for separation of amines?

Amongst the following the most basic compound is

Which of the following is the strongest base?