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Class 12 Notes 2016 : Chemistry-AMINES (R. N. Podar School CBSE, Santacruz West, Mumbai)

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Pranav Arora
Hiranandani Foundation School (HFS), Powai, Mumbai

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ANSWER KEY Class: 12 Month: JULY Worksheet Number: 12/chem/13/AK Subject: CHEMISTRY Chapter 13: AMINES Name: ____________________________________________ 1. Section A Each question carries 1 mark : What happens when Chloroform is treated with aniline in presence of alc.KOH. Aliphatic and aromatic primary amines on heating with chloroform and ethanolic potassium hydroxide form isocyanides or carbylamines which are foul smelling substances. 2. Write a chemical reaction in which iodide ion displaces diazonium group from a diazonium salt. Iodine is not easily introduced into the benzene ring directly, but, when the diazonium salt solution is treated with potassium iodide, iodobenzene is formed. 3 Classify the following amines as primary, secondary or tertiary: (i) (ii) (iii) (C2H5)2CHNH2 (iv) (C2H5)2NH Primary (I )&(iii) secondary (iv) tertiary (ii) 4. Each question carries 2 marks : What is Hinsberg s reagent? Give the reactions of Hinsberg s reagent with primary and secondary amines. Benzenesulphonyl chloride (C6H5SO2Cl) is Hinsberg s reagent. It reacts with primary and secondary amines to form sulphonamides. The reaction of benzenesulphonyl chloride with primary amine yields Nethylbenzenesulphonyl amide. In the reaction with secondary amine, N,N-diethylbenzenesulphonamide is formed. 5. 1 Starting from benzene diazonium chloride, how will you prepare the following compounds: Iodo benzene, Benzene, p-Amino azobenzene, Phenol 1

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