Chemistry of HydrocarbonsNitration of Benzene1046Choose the best answerThe electrophile that attacks benzene during nitration is:ANO₂⁻BNO₂⁺CNO₃⁻DNO₂• Like 1 Discuss 0Share
Chemistry of HydrocarbonsSulphonation of Benzene1047Choose the best answerThe electrophilic species used in sulphonation of benzene is:ASO₂BSO₃CSO₄²⁻DHSO₃⁻ Like 1 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Chemical Bonding#Dipole Moment1048Choose the best answerQ.76 The dipolar moment of CO₂ is zero because it is:AAngularBLinearCTriatomicDPyramidal Like 0 Discuss 0Share
StoichiometryMass–Volume Relationship1049Choose the best answerWhat volume is occupied by 4.4 g CO₂ at STP (273 K and 1 atm)?A22.4 cm³B224 cm³C2240 cm³D22400 cm³ Like 0 Discuss 0Share
Chemical KineticsUnits of Rate Constant and Reaction Order1050Choose the best answerThe rate constant has units s⁻¹. What is the order of the reaction?AZeroBFirstCSecondDFractional Like 0 Discuss 0Share