Chemical BondingElectron-Pair Geometry and Molecular Shape436Choose the best answerWhich species has different molecular geometry and electron-pair geometry?ASO₃BSnCl₂CCO₂DBF₃ Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Model437Choose the best answerAn electron falls from E₂ to the lower level E₁. What is the energy of the emitted photon?AE₁ − E₂BE₂ − E₁CE₁ + E₂DE₂/E₁ Like 0 Discuss 0Share
LiquidsIntermolecular Forces and Boiling Point438Choose the best answerAmong substances A, B and C with IMF strength A < B < C, which has the lowest expected boiling point?AABBCCDAll are equal Like 0 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Alcohols#Alcohols and Phenols439Choose the best answerAlkyl halide on reaction with aqueous NaOH gives an alcohol. The mechanism is: (Sindh MDCAT 2022)ASNBEliminationCDecompositionDElectrophilic substitution reaction Like 0 Discuss 0Share
BUMHS MDCAT 2025 Chemistry#Electrochemistry#Oxidation Number Method440Choose the best answerNO₂⁻ → NO₃⁻ + ne⁻. Value of "n" by the oxidation number method is: (BUMHS MDCAT 2025)A1B2C3D6 Like 0 Discuss 0Share6