GasesIdeal and Real Gas Behaviour1836Choose the best answerHelium shows very small deviation from ideal-gas behaviour mainly because:AIt has very strong intermolecular forcesBIt has very weak intermolecular attractive forcesCIts atoms have very large volumeDIt has a high boiling point Like 0 Discuss 0Share
SolidsFactors Affecting Lattice Energy1837Choose the best answerNaF has a higher lattice energy than KF mainly because:ANa⁺ is larger than K⁺BNa⁺ is smaller than K⁺CF⁻ is larger in NaFDNaF is covalent Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryStability of Carbocations1838Choose the best answerWhich carbocation is strongly stabilized by three alkyl groups?A(CH₃)₃C⁺BCH₃⁺CCH₃CH₂⁺D(CH₃)₂CH⁺ Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryFossil Fuels1839Choose the best answerWhich row is incorrect?ANatural gas — MethaneBLPG — Propane and butaneCCoke — HydrogenDCoal gas — H₂, CH₄ and CO Like 0 Discuss 0Share
BUMHS MDCAT 2025 Chemistry#Chemical Bonding#Molecular Geometry1840Choose the best answerA triatomic molecule must be either linear with bond angle of 180° or else? (BUMHS MDCAT 2025)At-shapeBbentCpyramidalDtetrahedral Like 1 Discuss 0Share