Carboxylic AcidsReduction to Primary Alcohols2036Choose the best answerThe conversion RCOOH → RCH₂OH is most effectively carried out using:AZn/HClBSodium in alcoholCAluminium isopropoxide in isopropyl alcoholDLiAlH₄ Like 0 Discuss 0Share
Atomic StructureQuantum Numbers2037Choose the best answerThe unpaired electron of lithium, Z = 3, has which orbital quantum numbers?An = 2, ℓ = 0, mℓ = 0Bn = 3, ℓ = 0, mℓ = 0Cn = 2, ℓ = 1, mℓ = +1Dn = 3, ℓ = 1, mℓ = 0 Like 0 Discuss 0Share
Chemistry of HydrocarbonsAromaticity and Reactivity of Benzene2038Choose 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 2 Discuss 0Share
Sindh MDCAT 2021 Chemistry#Coordination Chemistry#Transition Elements2039Choose the best answerWhich of the following ligand is chelating agent:AEDTABCN-1CNH₃DF-1 Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryStability of Carbanions2040Choose the best answerThe correct order of stability of simple alkyl carbanions is:A3° > 2° > 1° > CH₃⁻BCH₃⁻ > 1° > 2° > 3°C2° > 1° > CH₃⁻ > 3°D1° > 3° > 2° > CH₃⁻ Like 0 Discuss 0Share