Fundamental Principles of Organic ChemistryOctane Number and Knocking581Choose the best answerKnocking in petrol engines can be reduced by:ACyclisationBBranchingCAromatisationDAll of these Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryFunctional Isomerism582Choose the best answerWhich pair represents functional isomerism?AButan-1-ol and Butan-2-olBPropanal and PropanoneCPentane and IsopentaneDBut-1-ene and But-2-ene Like 0 Discuss 0Share
Chemical BondingMolecular Geometry and Planarity583Choose the best answerWhich molecule is not planar?ABenzeneBFormaldehydeCBF₃DPropane Like 0 Discuss 0Share
Atomic StructureDegenerate Orbitals584Choose the best answerIn the absence of an external field, the energy of an electron in a 2pᵧ orbital is:AGreater than in 2pₓBLess than in 2pₓCEqual to that in 2sDEqual to that in 2pz Like 0 Discuss 0Share
UHS MDCAT 2023 ChemistryUHS MDCAT 2023 Past Paper#Transition Elements#Variable Oxidation States585Choose the best answerWhich of the following transition metal show 3d⁵ configuration in its +2-oxidation state? (UHS MDCAT 2023)ACu²⁺BFe²⁺CMn²⁺DZn²⁺ Like 3 Discuss 0Share