Chemical BondingOctet Rule and Exceptions1976Choose the best answerWhich molecule does not obey the octet rule because the central atom has an expanded valence shell?ANF₃BCCl₄CCF₄DPCl₅ Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Degenerate Orbitals1977Choose the best answerWhat term is used for equal-energy orbitals within the same subshell?ADegenerate orbitalsBHybrid orbitalsCMolecular orbitalsDNon-bonding orbitals Like 3 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Chemical Kinetics#Surface Area and Reaction Rate1978Choose the best answerQ.88 Pulverized CaCO₃ reacts faster because of the increase in:APressureBSurface areaCVolumeDSurface tension Like 0 Discuss 0Share
Chemical BondingBond Angle and Lone-Pair Repulsion1979Choose the best answerA molecule with tetrahedral electron geometry and two lone pairs typically has a bond angle close to:A109.5°B104.5°C120°D180° Like 0 Discuss 0Share
SINDH MDCAT 2019 CHEMISTRY#Chemical Equilibrium#Effect of Temperature on Equilibrium1980Choose the best answerWhich statement about the following equilibrium is correct (2SO₂ + O₂ ⇌ 2SO₃, ΔH = -395 kJ/mole)? (Sindh MDCAT 2019)AThe value of Kₚ falls with rise in temperatureBThe value of Kₚ falls with increase in pressureCThe value of Kₚ is equal to K꜀DThe value of Kₚ remains constant with rise in temperature Like 0 Discuss 0Share