WEST BENGAL JOINT ENTRANCE EXAMINATIONS BOARD
SYLLABUS FOR JEM
Atoms, Molecules and Chemical Arithmetic :
Dalton’s atomic theory; Gay Lussac’s law of gaseous volume; Avogadro’s Hypothesis and its applications.
Atomic mass; Molecular mass; Equivalent weight; Valency; Gram atomic weight; Gram molecular weight;
Gram equivalent weight and mole concept; Chemical formulae; Balanced chemical equations; Calculations
(based on mole concept) involving common oxidation-reduction, neutralization, and displacement reactions;
Concentration in terms of mole fraction, molarity, molality and normality.
Also See: WBJEE 2018 Notification
Percentage composition, empirical formula and molecular formula; Numerical problems.
Aliphatic Compounds : Alkanes – Preparation from alkyl halides and carboxylic acids; Reactions — halogenation and combustion.Alkenes and Alkynes– Preparation from alcohols; Formation of Grignard reagents and their synthetic applications for the preparation of alkanes, alcohols, aldehydes, ketones and acids; SNl and SN2 reactions Markownikoff’s and anti-Markownikoff’s additions; Hydroboration;Oxymercuration-demercuration, reduction of alkenes and alkynes (H2/Lindler catalyst and Na in liquid NH3), metal acetylides
Alcohols: Preparation of alcohols from carbonyl compounds and esters. Reaction – dehydration, oxidation, esterification, reaction with sodium, ZnCl2/HCl, phosphorous halides.
Aromatic Compounds: Benzene – Kekule structure, aromaticity and Hückel rule. Electrophilic substitution – halogenation, sulfonation, nitration, Friedel Crafts reaction, ozonolysis. Directive influence of substituents in monosubstituted benzenes. Carcinogenicity and toxicity. Amines – Preparation from reduction of nitro compounds; Formation of diazonium salts and their stability; Replacement of diazonium group with H, OH, X (halogen), CN and NO2, diazocoupling and reduction. Haloarenes – Nature of C -X bond, substitution reactions; Nucleophilic substitution, cine substitution (excluding mechanism, Directive influence of halogen in monosubstituted compounds only). Phenols –halogenation, sulfonation, nitration, Reimer – Tiemann and Kolbe reactions. Aromatic Aldehydes – Preparation by Gattermann, Gattermann-Koch, Rosenmund and Stephen’s method. Reactions – Perkin, Benzoin and Cannizzaro.