UHS MDCAT 2023 ChemistryUHS MDCAT 2023 Past Paper#Chemistry of Hydrocarbons#Hydration of Alkynes26Choose the best answerPropanone can be prepared from propyne by: (UHS MDCAT 2023)APassing a mixture of propyne and steam over a catalyst, magnesium at 420°CBPassing a mixture of propyne and ethanol over a catalyst, zinc chromateCBoiling propyne with water in the presence of HgSO₄ and H₂SO₄DTreating propyne with iodine and NaOH Like 1 Discuss 0Share
MDCAT Chemistry Past PapersIBA MDCAT Chemistry Paper Reconduct 2024#Chemistry of Hydrocarbons#Pi Bond in Alkenes27Choose the best answerIn ethene, how many unhybridized p orbitals overlap to form π bonds? (IBA MDCAT Reconduct 2024)A1B2C4D8 Like 0 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Chemistry of Hydrocarbons#Wurtz Reaction28Choose the best answerQ.81 2-chloropropane is heated with Na metal, product is 2,3-dimethylbutane. Reaction is:ADehydrohalogenationBWurtz reactionCDehydrationDCatalytic dehydrogenation Like 0 Discuss 0Share
MDCAT Chemistry Past Papers Reconduct 2023#Chemistry of Hydrocarbons#Cracking29Choose the best answerCracking is a process used to increase the quantity of petrol (gasoline) from which source? (MDCAT Reconduct 2023)ACrude oilBCoalCBiomassDNatural gas Like 0 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Chemistry of Hydrocarbons#Reforming30Choose the best answerQ.115 Reforming:AIncreases knocking of internal combustion engineBIncreases octane numberCMore is the knocking, better is the fuelDTo produce a fuel of less octane number Like 0 Discuss 0Share