Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Photon Energy381Choose the best answerIn ΔE = E₂ − E₁ = hν, what does ν represent?APlanck’s constantBFrequency of radiationCWave numberDAngular momentum Like 0 Discuss 0Share
Sindh MDCAT 2021 Chemistry#Passivation#S- and P-Block Elements382Choose the best answerNitric acid is frequently transported in a container made of:AAlBCuCZnDAg Like 0 Discuss 0Share
LiquidsEnthalpy of Vaporization383Choose the best answerThe molar enthalpy of vaporization of water at its normal boiling point is approximately:A40.7 kJ mol⁻¹B40.7 J mol⁻¹C4.07 kJ mol⁻¹D407 kJ mol⁻¹ Like 0 Discuss 0Share
BUMHS MDCAT 2025 Chemistry#Chemical Bonding#Metallic Bonding384Choose the best answerWhich one has strongest metallic bond? (BUMHS MDCAT 2025)ANaBMgCAlDP Like 0 Discuss 0Share
UHS MDCAT 2023 ChemistryUHS MDCAT 2023 Past Paper#Alkyl Halides#SN1 Reaction385Choose the best answerIn SN₁ reactions the correct order of reactivity of alkyl halide is? (UHS MDCAT 2023)APrimary > Secondary > TertiaryBTertiary > Secondary > PrimaryCSecondary > Primary > TertiaryDPrimary > Tertiary > Secondary Like 0 Discuss 0Share