Amines — nomenclature, classification, preparation, physical and chemical properties; basicity of amines; identification of primary, secondary and tertiary amines; diazonium salts — preparation, important reactions and synthetic usefulness in aromatic compounds.
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Q1 · Organic Compounds Containing Nitrogen · EASY
Aniline reacts with benzoyl chloride in the presence of sodium hydroxide to form benzanilide. This reaction is known as:
Q2 · Organic Compounds Containing Nitrogen · MEDIUM
Among the following amines, which one is the most basic in aqueous solution? (CH3)2NH, C6H5NH2, NH3, CH3NH2
Q3 · Organic Compounds Containing Nitrogen · MEDIUM
A primary aromatic amine on treatment with nitrous acid at 0-5°C followed by reaction with phenol in alkaline medium gives an orange-red dye. This reaction sequence involves:
Q4 · Organic Compounds Containing Nitrogen · EASY
Which of the following reagents can be used to distinguish between primary, secondary, and tertiary aliphatic amines?
Q5 · Organic Compounds Containing Nitrogen · HARD
Benzene diazonium chloride on treatment with cuprous bromide in HBr gives bromobenzene. If the same diazonium salt is treated with KI, iodobenzene is formed. However, when treated with fluoroboric acid (HBF4) followed by heating, fluorobenzene is obtained. Which of the following statements correctly explains these observations?