Chemistry of HydrocarbonsNitration of Benzene106Choose the best answerWhich reagent mixture is used for nitration of benzene?AConcentrated HNO₃ + concentrated H₂SO₄BHCl + HNO₃CH₂SO₄ + HClDHNO₃ + NaOH Like 1 Discuss 0Share
Chemistry of HydrocarbonsElectrophilic Aromatic Substitution107Choose the best answerBenzene mainly undergoes:AAddition reactionsBElectrophilic substitution reactionsCNucleophilic substitution reactionsDElimination reactions Like 1 Discuss 0Share
Chemistry of HydrocarbonsDirective Influence of Substituents108Choose the best answerOrtho-para directing groups are generally:AActivating groupsBDeactivating groupsCAlways neutral groupsDAlways meta directors Like 0 Discuss 0Share
Chemistry of HydrocarbonsPhysical Properties of Hydrocarbons109Choose the best answerWhich statement best describes the physical state of higher members of a hydrocarbon homologous series?AThey remain gases regardless of chain length.BIncreasing molecular size can eventually change members from gases to liquids and then solids.CAll C₁₆ hydrocarbons must be solids.DMolecular structure has no effect on physical state. Like 0 Discuss 0Share
Chemistry of HydrocarbonsSulphonation of Benzene110Choose the best answerIn the usual textbook treatment, the electrophilic species in sulphonation of benzene is:ASO₃BSO₄²⁻CHSO₄⁻DOH⁻ Like 1 Discuss 0Share