MDCAT Chemistry Past Papers 2024Sindh MDCAT Chemistry Past Paper 2024#Carboxylic Acids#Natural Sources of Carboxylic Acids821Choose the best answerFormic acid is naturally found in:AButterBGoatCMilkDAnts Like 0 Discuss 0Share
Chemistry of HydrocarbonsActivating and Deactivating Groups822Choose the best answerThe decreasing order of activating effect is:A–NH₂ > –OH > –CH₃B–CH₃ > –OH > –NH₂C–OH > –NH₂ > –CH₃D–CH₃ > –NH₂ > –OH Like 1 Discuss 0Share
Fundamental Principles of Organic ChemistryBuckminsterfullerene C₆₀823Choose the best answerIn C₆₀, each carbon atom is directly bonded to:AFour carbon atomsBThree carbon atomsCTwo carbon atomsDOne carbon atom Like 0 Discuss 0Share
Basic Concepts of ChemistryElements, Compounds and Mixtures824Choose the best answerWhich one of the following is not an element?ADiamondBGraphiteCSilicaDOzone Like 0 Discuss 0Share
Chemical KineticsRate Law and Reaction Order825Choose the best answerFor the reaction 2A + B₂ → 2AB, experimental data show that the rate is independent of [A] but directly proportional to [B₂]. The rate law is:ARate = k[B₂]BRate = k[B₂]²CRate = k[A]²[B₂]²DRate = k[A]²[B₂] Like 0 Discuss 0Share