Name reagents required for preparation of methyl orange indicator (no reaction).

How is phenylhydrazine prepared from aniline?

A (C₃H₉N) reacts with benzenesulphonyl chloride to give a solid insoluble in alkali. Give the structure of A.

What amine salts are used for determining their molecular masses?

Amines are more basic than comparable alcohols.

Complete the following acid-base reactions and name the products:
(a) CH₃-CH₂-CH₂-NH₂ + HCI \(\rightarrow \)
(b) (C₂H₅)₃N+HCI \(\rightarrow \)

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

Arrange the following compounds in an increasing order of basic strengths in their aqueous solutions:
NH₃ , CH₃NH₂ , (CH₃)₂NH , (CH₃)₃N

Give the IUPAC name of
H₂N-CH₂-CH₂-CH = CH₂

Write one reaction that can be used as a test for primary amines.

Why is an alkylamine more basic than ammonia?

Why does bromination of aniline, even under very mild conditions, gives 2, 4, 6-tribromoaniline instantaneously?

Write reactions of the final alkylation product of aniline with excess of methyl iodide in the presence of sodium carbonate solution.

A colourless substance 'A' (C₆H₇N) is sparingly soluble in water and gives a water soluble compound 'B' on treating with mineral acid. On reacting with CHCl₃ and alcoholic potash 'A' produces an obnoxious smell due to the formation of compoung 'C'. Reaction of 'A' with benzenesulphonyl chloride gives compound 'D' which is soluble in alkali. With NaNO₂ and HCl, 'A' forms compound 'E' which reacts with phenol in alkaline medium to give an orange dye 'F' . Identify compounds 'A' to 'F'.

Accomplish the following conversions:
(i) Benzene to m-bromophenol
(ii) Benzoic acid to aniline

How are the following conversions carried out?
(i) Aniline to nitrobenzene
(ii) Ethanamine to N-ethylethanamid
(iii) Chloroethane to propan-1-amine

Amines may be regarded as alkyl or aryl derivatives of ammonia. They may be primary, secondary or tertiary. Quaternary salts are also quite common. They occur in nature among proteins, vitamins,alkaloids and hormones. Several polymer, dyestuffs and drugs are amines.
(i) Name two drugs which contain secondary amino groups and are used to increase blood pressure.
(ii) Which amino drug is used as an anaesthetic in dentistry?
(iii) Benadryl is an antihistamine drug and is commonly used in cough syrups, what type of amino group  does it contain?
(iv) Name a quaternary salt which is used both as detergent and as a germicide.

A hydrocarbon 'A' (C₄H₈) on reaction with HCI gives a compound 'B' , (C₄H₁₁N). On reacting with NaNO₂ and HCI followed by treatment with water, compound 'C'. Ozonolysis of 'A' gives 2 moles of acetaldehyde. Identify compounds 'A' to 'D' . Explain the reactions involved.

Which of the following will not show coupling reaction with benzenediazonium chloride?

Ethylamine on heating with CS₂ in presence of HgCl₂ forms

Which of the following is most basic?

Amine that cannot be prepared by Gabriel phthalimide synthesis is

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