Chemistry of HydrocarbonsPartial Reduction of Alkynes231Choose the best answerWhich reagent converts an alkyne mainly into a trans-alkene?AH₂/PdBH₂/Lindlar catalystCNa/NH₃(l)DH₂/Ni Like 2 Discuss 0Share
Alcohols and PhenolsAcidic Character of Alcohols232Choose the best answerThe acidity of alcohols decreases with increasing alkyl substitution because alkyl groups show:A−I effectB+I effectCResonance effectDMesomeric effect Like 0 Discuss 0Share
Chemistry of HydrocarbonsHalogenation of Benzene233Choose the best answerChlorination of benzene commonly requires:AFeCl₃ or AlCl₃BZn dustCNaOHDH₂SO₄ only Like 1 Discuss 0Share
Atomic StructureBohr's Atomic Model234Choose the best answerIn Bohr's theory, the allowed electronic energy levels of hydrogen are represented by:AContinuous energy bandsBQuantized stationary orbitsCHybrid orbitalsDMolecular orbitals Like 0 Discuss 0Share
KMU MDCAT 2024 Chemistry#Passivation#S- and P-Block Elements235Choose the best answerThird period element that initially reacts rapidly with oxygen to form a protective oxide coating that prevents further reactions is (KMU MDCAT 2024)AAlBMgCNaDSi Like 0 Discuss 0Share