Chemistry of HydrocarbonsElectrophilic Aromatic Substitution81Choose the best answerBenzene mainly undergoes:AAddition reactionsBElectrophilic substitution reactionsCNucleophilic substitution reactionsDElimination reactions Like 0 Discuss 0Share
MDCAT Chemistry Past Papers Reconduct 2023#Alkynes#Chemistry of Hydrocarbons82Choose the best answerAcetylene forms benzene when passed through a red-hot tube made of: (MDCAT Reconduct 2023)AIronBNickelCPalladiumDPlatinum Like 0 Discuss 0Share
Chemistry of HydrocarbonsDirective Influence of Substituents83Choose the best answerOrtho-para directing groups are generally:AActivating groupsBDeactivating groupsCAlways neutral groupsDAlways meta directors Like 0 Discuss 0Share
Chemistry of HydrocarbonsPhysical Properties of Hydrocarbons84Choose 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 Benzene85Choose the best answerIn the usual textbook treatment, the electrophilic species in sulphonation of benzene is:ASO₃BSO₄²⁻CHSO₄⁻DOH⁻ Like 0 Discuss 0Share