Which of the following is a $3^{\circ}$ amine?

The correct IUPAC name for $\mathrm{CH}_2=\mathrm{CHCH}_2 \mathrm{NHCH}_3$ is

Amongst the following, the strongest base in aqueous medium is

Which of the following is the weakest Brosted base?

Benzylamine may be alkylated as shown in the following equation?

$$\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{NH}_2+\mathrm{R}-\mathrm{X} \longrightarrow \mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{NHR}$$

Which of the following alkyl halides is best suited for this reaction through $\mathrm{S}_{\mathrm{N}} 1$ mechanism?

Which of the following reagents would not be a good choice for reducing an aryl nitro compound to an amine?

In order to prepare a $1^{\circ}$ amine from an alkyl halide with simultaneous addition of one $\mathrm{CH}_2$ group in the carbon chain, the reagent used as source of nitrogen is ............ .

The source of nitrogen in Gabriel synthesis of amines is ........... .

Amongst the given set of reactants, the most appropriate for preparing $2^{\circ}$ amine is ............ .

The best reagent for converting 2-phenylpropanamide into 2-phenylpropanamine is ........... .

The best reagent for converting, 2-phenylpropanamide into 1-phenylethanamine is ............ .

Hofmann bromamide degradation reaction is shown by

The correct increasing order of basic strength for the following compounds is .............. .

Methylamine reacts with $\mathrm{HNO}_2$ to form ............. .

The gas evolved when methylamine reacts with nitrous acid is ........... .

In the nitration of benzene using a mixture of conc. $\mathrm{H}_2 \mathrm{SO}_4$ and conc. $\mathrm{HNO}_3$, the species which initiates the reaction is ............. .

Reduction of aromatic nitro compounds using Fe and HCl gives .............. .

The most reactive amine towards dilute hydrochloric acid is ............. .

Acid anhydrides on reaction with primary amines give ............ .

The reaction $$\mathrm{Ar\mathop {{N_2}}\limits^ + C{l^ - }}$$ $\xrightarrow{\mathrm{Cu} / \mathrm{HCl}} \mathrm{ArCl}+\mathrm{N}_2+\mathrm{CuCl}$ is named as ................ .

Best method for preparing primary amines from alkyl halides without changing the number of carbon atoms in the chain is ............... .

Which of the following compound will not undergo azo coupling reaction with benzene diazonium chloride?

Which of the following compounds is the weakest Bronsted base?

Among the following amines, the strongest Bronsted base is .............. .

The correct decreasing order of basic strength of the following species is ......... . $\mathrm{H}_2 \mathrm{O}, \mathrm{NH}_3, \mathrm{OH}^{-}, \mathrm{NH}_2^{-}$

Which of the following should be most volatile?

I. $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_2 \mathrm{NH}_2$

II. $\left(\mathrm{CH}_3\right)_3 \mathrm{~N}$

III.

IV. $\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_3$

Assertion (A) Acylation of amines gives a monosubstituted product whereas alkylation of amines gives polysubstituted product.

Reason (R) Acyl group sterically hinders the approach of further acyl groups.

Assertion (A) Hofmann's bromamide reaction is given by primary amines.

Reason (R) Primary amines one more basic than secondary amines.

Assertion (A) N-ethylbenzene sulphonamide is soluble in alkali.

Reason (R) Hydrogen attached to nitrogen in sulphonamide is strongly acidic.

Assertion (A) N, N-diethylbenzene sulphonamide is insoluble in alkali.

Reason (R) Sulphonyl group attached to nitrogen atom is strong electron withdrawing group.

Assertion (A) Only a small amount of HCl is required in the reduction of nitro compounds with iron scrap and HCl in the presence of steam.

Reason (R) $\mathrm{FeCl}_2$ formed gets hydrolysed to release HCl during the reaction.

Assertion (A) Aromatic $1^{\circ}$ amines can be prepared by Gabriel phthalimide synthesis.

Reason (R) Aryl halides undergo nucleophilic substitution with anion formed by phthalimide.

Assertion (A) Acetanilide is less basic aniline.

Reason (R) Acetylation of aniline results in decrease of electron density on nitrogen.

Which of the following methods of preparation of amines will give same number of carbon atoms in the chain of amines as in the reactant?

Which of the following cannot be prepared by Sandmeyer's reaction?

Reduction of nitrobenzene by which of the following reagent gives aniline?

Which of the following species are involved in the carbylamine test?

The reagents that can be used to convert benzenediazonium chloride to benzene are ............. .

The product of the following reaction is ............... .

Arenium ion involved in the bromination of aniline is ............. .

Which of the following amines can be prepared by Gabriel synthesis?

Which of the following reactions are correct?

Under which of the following reaction conditions, aniline gives p-nitro derivative as the major product?

Which of the following reactions belong to electrophilic aromatic substitution?

What is the role of $\mathrm{HNO}_3$ in the nitrating mixture used for nitration of benzene?

Why is $\mathrm{NH}_2$ group of aniline acetylated before carrying out nitration?

What is the product when $\mathrm{C}_6 \mathrm{H}_5 \mathrm{CH}_2 \mathrm{NH}_2$ reacts with $\mathrm{HNO}_2$ ?

What is the best reagent to convert nitrile to primary amine?

Give the structure 'A' in the following reaction.

What is Hinsberg reagent?

Why is benzene diazonium chloride not stored and is used immediately after its preparation?

Why does acylation of $-\mathrm{NH}_2$ group of aniline reduces its activating effect?

Explain why $\mathrm{MeNH}_2$ is stronger base than MeOH ?

What is the role of pyridine in the acylation reaction of amines?

Under what reaction condition (acidic, basic) the coupling reaction of aryl diazonium chloride with aniline is carried out?

Predict the product of reaction of aniline with bromine in non-polar solvent such as $\mathrm{CS}_2$.

Arrange the following compounds in increasing order of dipole moment.

$$\mathrm{CH}_3 \mathrm{CH}_2 \mathrm{CH}_3, \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{NH}_2, \mathrm{CH}_3 \mathrm{CH}_2 \mathrm{OH}$$

What is the structure and IUPAC name of the compound, allyl amine?

Write down the IUPAC name of

A compound Z with molecular formula $\mathrm{C}_3 \mathrm{H}_9 \mathrm{~N}$ reacts with $\mathrm{C}_6 \mathrm{H}_5 \mathrm{SO}_2 \mathrm{Cl}$ to give a solid, insoluble in alkali. Identify Z.

A primary amine, $\mathrm{RNH}_2$ can be reacted with $\mathrm{CH}_3-\mathrm{X}$ to get secondary amine, $\mathrm{R}-\mathrm{NHCH}_3$ but the only disadvantage is that $3^{\circ}$ amine and quaternary ammonium salts are also obtained as side products. Can you suggest a method where $\mathrm{RNH}_2$ forms only $2^{\circ}$ amine?

Complete the following reaction.

Why is aniline soluble in aqueous HCl ?

Suggest a route by which the following conversion can be accomplished.

Identify A and B in the following reaction.

How will you carry out the following conversions?

(i) Toluene $\longrightarrow \mathrm{p}$-toluidine

(ii) p -toluidine diazonium chloride $\longrightarrow \mathrm{p}$-toluic acid

Write following conversions

(i) Nitrobenzene $\longrightarrow$ Acetanilide

(ii) Acetanilide $\longrightarrow \mathrm{p}$-nitroaniline

A solution contains 1 g mol. each of p-toluene diazonium chloride and p -nitrophenyl diazonium chloride. To this 1 g mol. of alkaline solution of phenol is added. Predict the major product. Explain your answer.

How will you bring out the following conversion?

How will you carry out the following conversion?

How will you carry out the following conversion?

How will you carry out the following conversions?

Match the reactions given in Column I with the statements given in Column II.

Match the compounds given in Column I with the items given in Column II.

A hydrocarbon ' A ' $\left(\mathrm{C}_4 \mathrm{H}_8\right)$ on reaction with HCl gives a compound ' B ', $\left(\mathrm{C}_4 \mathrm{H}_9 \mathrm{Cl}\right)$, which on reaction with 1 mol of $\mathrm{NH}_3$ gives compound ' C ', $\left(\mathrm{C}_4 \mathrm{H}_{11} \mathrm{~N}\right)$. On reacting with $\mathrm{NaNO}_2$ and HCl followed by treatment with water, compound 'C' yields an optically active alcohol, 'D'. Ozonolysis of 'A' gives 2 mols of acetaldehyde. Identify compounds 'A' to 'D'. Explain the reactions involved.

A colourless substance ' A ' $\left(\mathrm{C}_6 \mathrm{H}_7 \mathrm{~N}\right)$ is sparingly soluble in water and gives a water soluble compound ' B ' on treating with mineral acid. On reacting with $\mathrm{CHCl}_3$ and alcoholic potash ' A ' produces an obnoxious smell due to the formation of compound ' C '. Reaction of ' A ' with benzenesulphonyl chloride gives compound ' D ' which is soluble in alkali. With $\mathrm{NaNO}_2$ and HCl , 'A' forms compound ' E ' which reacts with phenol in alkaline medium to give an orange dye ' $F$ '. Identify compounds ' $A$ ' to ' $F$ '.

Predict the reagent or the product in the following reaction sequence.