Chemical Bondingsp² Hybridization3101Choose the best answerIn ethene, the unhybridized p orbital is oriented at approximately what angle to the plane of the three sp² hybrid orbitals?A120°B90°C109.5°D180° Like 0 Discuss 0Share
Sindh MDCAT 2022 Chemistry#Industrial Chemistry#Ostwald Process3102Choose the best answerQ.75 Oswald's process is the oxidation of:AH₂SBNH₃CHNO₃DH₂SO₄ Like 0 Discuss 0Share
LiquidsLiquid–Vapour Equilibrium3103Choose the best answerAt the boiling point, coexisting liquid and vapour phases at equilibrium have the same:AAverage translational kinetic energyBPotential energyCMolecular separationDIntermolecular forces Like 0 Discuss 0Share
UHS MDCAT 2025 Chemistryuhs mdcat chemistry 2025#Percentage Yield#Stoichiometry3104Choose the best answerConsider the given balanced chemical equation: 2H₂ + O₂ → 2H₂O. If 4 g of H₂ reacts with 32 g of O₂ to produce 28 g of H₂O, what is the percentage yield of the reaction?A63.6%B77.8%C87.5%D92.5% Like 0 Discuss 0Share
SINDH MDCAT 2018 Chemistry#Aluminium Alloys#S- and P-Block Elements3105Choose the best answerThe alloy Duralumin is composed of ______ of Al. (Sindh MDCAT 2018)A95%B90%C85%D80% Like 0 Discuss 0Share