Chemistry of HydrocarbonsElectrophiles in Aromatic Substitution86Choose the best answerWhich of the following is NOT an electrophile?ANO₂⁺BSO₃CCl⁺DOH⁻ Like 0 Discuss 0Share
Chemistry of HydrocarbonsFree-Radical Halogenation of Alkanes87Choose the best answerWhich reaction is a termination step in free-radical chlorination?ACH₄ + Cl• → CH₃• + HClBCH₃• + Cl₂ → CH₃Cl + Cl•CCl• + Cl• → Cl₂DCl₂ → 2Cl• Like 1 Discuss 0Share
Chemistry of HydrocarbonsKekulé Structure of Benzene88Choose the best answerThe cyclic structural formula of benzene with alternating double bonds was proposed by:AFaradayBDavyCKekuléDWöhler Like 1 Discuss 0Share
Chemistry of HydrocarbonsDirective Influence of Substituents89Choose the best answerWhich of the following is NOT a meta-directing group?A–CHOB–COOHC–NO₂D–CH₃ Like 0 Discuss 0Share
Chemistry of HydrocarbonsMarkovnikov Addition90Choose the best answerAccording to Markovnikov's rule, when HX adds to an unsymmetrical alkene, H generally attaches to the carbon that:AHas fewer hydrogen atomsBHas more hydrogen atomsCIs bonded to the halogenDHas no carbon substituent in every case Like 1 Discuss 0Share