Chemistry of HydrocarbonsTest for Terminal Alkynes91Choose the best answerWhich compound forms a precipitate with ammoniacal AgNO₃?APropeneBPropaneCPropyneDBut-2-yne Like 0 Discuss 0Share
Chemistry of HydrocarbonsAromaticity and Reactivity of Benzene92Choose the best answerBenzene resists addition reactions mainly because:AIt has only σ bonds.BAddition would destroy its aromatic stabilization.CIt contains no π electrons.DIt is highly polar. Like 0 Discuss 0Share
MDCAT Chemistry Past Papers 2024Sindh MDCAT Chemistry Past Paper 2024#Chemistry of Hydrocarbons#Natural Gas in Pakistan93Choose the best answerThe initial discovery of natural gas in Pakistan dates back to when it was found in the Sui area of Baluchistan:A1955B1954C1956D1952 Like 0 Discuss 0Share
Chemistry of HydrocarbonsHalohydrin Formation94Choose the best answerWhich intermediate is formed during bromohydrin formation from an alkene?AFree carbocationBBromonium ionCCarbanionDFree radical Like 0 Discuss 0Share
Chemistry of HydrocarbonsFree-Radical Halogenation of Alkanes95Choose the best answerWhich reaction is a propagation step in the chlorination of methane?ACl₂ → 2Cl•BCH₄ + Cl• → CH₃• + HClCCl• + Cl• → Cl₂DCH₃• + CH₃• → C₂H₆ Like 0 Discuss 0Share