Periodic TableIsoelectronic Species and Ionic Radius621Choose the best answerWhy is the ionic radius of S²⁻ larger than that of K⁺?AS²⁻ contains more electrons than K⁺.BK⁺ contains more occupied electron shells.CS²⁻ and K⁺ are isoelectronic, but S²⁻ has a lower nuclear charge.DS²⁻ has a higher nuclear charge than K⁺. Like 0 Discuss 0Share
Chemical BondingHybridization and Sigma Bond Strength622Choose the best answerWhich overlap generally produces the strongest σ bond among the following?Asp³–sp³Bsp–spCsp²–sp²DAll are equally strong Like 0 Discuss 0Share
SINDH MDCAT 2018 Chemistry#Amino Acids#Macromolecules623Choose the best answerZwitter ion is formed when proton goes from: (Sindh MDCAT 2018)AAmino to carboxyl groupBCarboxyl to amino groupCCarboxyl group onlyDAmino group only Like 0 Discuss 0Share
Fundamental Concepts of ChemistryDiffusion624Choose the best answerThe spontaneous mixing and spreading of particles is called:AEvaporationBSublimationCDiffusionDBoiling Like 0 Discuss 0Share
MDCAT Chemistry Paper 2025#Ionization Energy#Periodic Trends625Choose the best answerIf ionization energy of an element is greater then: (IBA MDCAT 2025)AMore is its reducing powerBMore is its electronegativityCLess is its metallic characterDMore is its atomic radius Like 5 Discuss 0Share