Chemical KineticsReaction Mechanism and Intermediates241Choose the best answerFor the mechanism: Step 1: 2NO₂ → NO₃ + NO Step 2: NO₃ + CO → NO₂ + CO₂ Which species acts as an intermediate?ANO₂BNO₃CCODCO₂ Like 0 Discuss 0Share
UHS MDCAT 2023 ChemistryUHS MDCAT 2023 Past Paper#Bond Energy#Chemical Bonding242Choose the best answerEnergy changes in chemical reactions are mainly due to:ABond formationBBond breakageCBond formation and breakageDIonic bonds Like 0 Discuss 0Share
Chemical equilibrium 01Chemical equilibrium #Reversible Reactions243Choose the best answerFor N₂(g) + 3H₂(g) ⇌ 2NH₃(g), what does the reverse reaction represent?AFormation of NH₃ from N₂ and H₂BDecomposition of NH₃ into N₂ and H₂CFormation of N₂ from NH₃ onlyDConversion of H₂ into NH₃ Like 0 Discuss 0Share
Alcohols and PhenolsGrignard Reaction with Esters244Choose the best answerCH₃MgBr reacts with methyl acetate followed by H₃O⁺ to give:APropan-2-olB2-Methylpropan-2-olCEthanolDMethanol only Like 0 Discuss 0Share
GasesKinetic Molecular Theory and Absolute Zero245Choose the best answerAccording to classical Kinetic Molecular Theory, the translational kinetic energy of an ideal gas at 0 K is:AMaximumBMinimum but non-zeroCZeroDIndependent of temperature Like 0 Discuss 0Share