Nitration of nitrobonzene results in..............

\({ CH }_{ 3 }{ CH }_{ 2 }\overset { Aq.KOH }{ \underset { \triangle }{ \longrightarrow } } A\overset { KMnO_{ 4 }\quad /\quad { H }^{ + } }{ \underset { \triangle }{ \longrightarrow } } B\overset { N{ H }_{ 3 } }{ \underset { \triangle }{ \longrightarrow } } C\overset { B{ r }_{ 2 } }{ \underset { Alkali }{ \longrightarrow } } D;D\quad is\)

Which of the following compounds gives dye test?

Amongst the following, the strongest base in aqueous medium is........................

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

Anorganic compound A upon reacting with NH₃ gives B. On heating, B gives C. C in presence of KOH reacts with Br₂ to give CH₃CH₂NH₂. A is

Positive carbylamine test is shown by

Which of the following will be the most stable diazonium salt, \({ RN }_{ 2 }^{ + }{ X }^{ - }\) ?

Isopropylamine can be obtained by

p-Chloroaniline and anilinium hydrochloride can be distinguished by

Write a chemical reaction in which the iodide ion replaces the diazonium group in a diazonium salt.

Mention one commercial use of N, N-Dimethylaniline (DMA).

What is the role of NHO₃ in the nitrating mixture used for nitration of benzene?

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

Which is soluble in water NH₃ or methylamine?

How can you convert aniline to iodobenzene?

Write structures of different isomers corresponding to the molecular formula, C₃H₉N. Write IUPAC names of the isomers which will liberate nitrogen gas on treatment with nitrous acid.

Explain the following reactions:
(i) Gabriel phthalimide reaction
(ii) Coupling reaction

Write chemical equations for the following conversions:
(i) Nitrobenzene to benzoic acid
(ii) Benzyl chloride to 2-phenylethanamine.
(iii) Aniline to benzyl alcohol.

Complete the folowing reaction equations:
(i) C₆H₅N₂CI+CH₃COCI \(\longrightarrow \)
(ii)C₂H₅NH₂+C₆H₅SO₂CI \(\longrightarrow \)
(iii) C₂H₅NH₂+HNO₂ \(\longrightarrow \)

Explain why the amino group in aniline acts as a powerful activator and ortho and para director towards electrophilic substitution reaction.

Give plausible explanation for each of the following:
(i) Why are amines less acidic than alcoholes of comparable molecular masses?
(ii) Why do primary amines has higher boiling point than tertiary amines?
(iii) Why are aliphatic amines stronger bases than aromatic amines?

Account for the following:
(i) Primary amines (R-NH)₂ have higher boiling point than tertiary amines (R₃-N).
(ii) Aniline does not undergo Friedel-Crafts reaction. 
(iii) (CH₃)₂ NH is more basic than (CH₃)₃ N in an aqueous solution.

Why is an amide more acidic than amine?

Lakshay and Varun were going to the market.On the way they saw tie and dye shop of clothes Varun was surprised to see that and was unable to understand surprised to see that and was unable to understand how the clothes get coloured there. When they  came back Lakshay explained reason to Varun Diazonium salts are the most reactive derivatives of aromatic primary amines These are formed as a result of diazotization reaction carried under ice cooled conditions.Diazonium salts lead to coloured azodyes by coupling reactions under acidic or alkaline conditions. A very popular azodye is methyl orange.
Give the answer of two following questions:
(i) What are the constituents of methyl orange?
(ii) How is methyl orange is useful?
(iii) How is methyl orange is useful?
(iv) What are the values shown by them?