UHS MDCAT 2023 ChemistryUHS MDCAT 2023 Past Paper#Alkanes#Chemistry of Hydrocarbons1206Choose the best answerUnder suitable conditions alkanes cannot undergo ...............reactions? (UHS MDCAT 2023)ASubstitutionBCombustionCCrackingDAddition Like 0 Discuss 0Share
Chemistry of HydrocarbonsFriedel–Crafts Alkylation1207Choose the best answerFriedel–Crafts acylation is often preferred over direct alkylation because alkylation may:AAlways produce a poisonous gasBRelease exceptionally large heat onlyCProduce polyalkylated productsDBe impossible with AlCl₃ Like 1 Discuss 0Share
Classification of Hydrocarbons and IsomerismClassification of hydrocarbons, structural & geometrical isomerism#Alkanes#Chemistry of Hydrocarbons1208Choose the best answerHow many chain isomers are possible for C₅H₁₂ and C₆H₁₄, respectively?A3 and 5B3 and 4C4 and 5D5 and 6 Like 0 Discuss 0Share
Chemistry of HydrocarbonsPreparation of Alkynes from Calcium Carbide1209Choose the best answerCalcium carbide reacts with water to produce:AEthane + Ca(OH)₂BEthene + CaOCEthyne + Ca(OH)₂DMethane + CaCO₃ Like 1 Discuss 0Share
Basic Concepts of ChemistryPhysical and Chemical Changes1210Choose the best answerA chemical change results in:ALoss of matterBSolutionCPhase changeDFormation of different kinds of matter Like 0 Discuss 0Share