Chemistry of HydrocarbonsStructure and Hybridization of Alkanes3021Choose the best answerThe C–C bond in ethane is formed by overlap of:Asp³–sp³ orbitalsBsp²–sp² orbitalsCsp–sp orbitalsDp–p orbitals Like 1 Discuss 0Share
Atomic StructureAtomic Number and Mass Number3022Choose the best answerThe nucleus of ⁴⁵₂₁E contains:A45 protons and 21 neutronsB21 protons and 24 neutronsC21 protons and 45 neutronsD24 protons and 21 neutrons Like 0 Discuss 0Share
LiquidsStructure and Density of Ice3023Choose the best answerIce at 0°C occupies more volume than liquid water mainly because of:AEmpty spaces in its open structureBIonic bondingCUnpaired electronsDDebye forces Like 0 Discuss 0Share
SZABMU MDCAT 2025 Chemistry#Electronegativity#Periodic Trends3024Choose the best answerWhich one of the following has highest ionic character? (SZABMU MDCAT 2025)AAlCl₃BBaCl₂CPCl₃DNaCl Like 0 Discuss 0Share1
Stoichiometry#Atomic Structure#History of Atomic Theory3025Choose the best answerWhich contributions are associated with J. J. Berzelius?ADetermined atomic masses of elementsBDetermined atomic numbersCDeveloped modern chemical symbolsDA and C Like 0 Discuss 0Share