IB DP Chemistry Reactivity 3.4 Electron-pair sharing reactions IB Style Question Bank HL Paper 1 IB DP PhysicsIB DP MathsIB DP ChemistryIB DP Biology IBDP Chemistry Paper 1 - All Chapters QuestionWhich mechanism does benzene most readily undergo?A Nucleophilic substitutionB Electrophilic substitutionC Electrophilic additionD Free radical substitutionAnswer/ExplanationAns: B QuestionWhat is the mechanism for the reaction of propene with iodine in the dark?A. electrophilic additionB. electrophilic substitutionC. free radical substitutionD. nucleophilic substitutionAnswer/ExplanationMarkschemeAExaminers report[N/A] QuestionWhich statements about the chlorine free radical are correct?I. It has 18 electrons.II. It is an uncharged species.III. It is formed by homolytic fission.A. I and II onlyB. I and III onlyC. II and III onlyD. I, II and IIIAnswer/ExplanationMarkschemeCExaminers report[N/A] More DP Chemistry HL Paper 1 Questions..