Alcohols and PhenolsGrignard Reaction with Formate Esters2166Choose the best answerEthyl formate reacts with excess CH₃MgI followed by hydrolysis to produce:APropan-1-olBEthanalCPropanalDPropan-2-ol Like 0 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Combustion Stoichiometry#Stoichiometry2167Choose the best answerQ.101 3.0 g of C on combustion gives C + O₂ → CO₂.A5.5 g of CO₂B22 g of CO₂C6.02 × 10²³ molecules of CO₂D1.505 × 10²³ molecules of CO₂ Like 0 Discuss 0Share
ElectrochemistryCell Notation2168Choose the best answerIn the cell notation Zn(s) | Zn²⁺(1 M) || Cu²⁺(1 M) | Cu(s), the double vertical line || represents the:ASalt bridgeBConcentrationCMetal electrodeDElectron Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Mole Concept2169Choose the best answerWhich sequence correctly represents atom → molecule → compound?AHe → O₂ → OBNa → H₂ → H₂OCO → O₂ → ODH → H₂O → H₂ Like 0 Discuss 0Share2
Aldehydes and KetonesPreparation of Aldehydes by Dehydrogenation2170Choose the best answerWhich alcohol gives butanal on dehydrogenation over heated copper?AButan-2-olBButan-1-olC2-Methylpropan-2-olD2-Methylpropan-1-ol Like 0 Discuss 0Share