GasesAbsolute Zero276Choose the best answerThe temperature corresponding to zero on the absolute temperature scale is called:ACritical temperatureBAbsolute zeroCBoiling pointDStandard temperature Like 0 Discuss 0Share
XIIMDCAT Chemistry Test#Carboxylic Acids#Reduction of Esters277Choose the best answerComplete reduction of ethyl ethanoate with LiAlH₄ produces which product?ATwo molecules of secondary alcoholBAn alcohol and an aldehydeCTwo molecules of ethanolDAn alcohol and a ketone Like 0 Discuss 0Share
Alcohols and PhenolsClassification of Alcohols278Choose the best answerWhich of the following is a tertiary alcohol?AButan-1-olBPropan-1-olC2-Methylpropan-2-olDEthanol Like 0 Discuss 0Share
Chemical KineticsReaction Mechanism and Intermediates279Choose 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 Bonding280Choose the best answerEnergy changes in chemical reactions are mainly due to:ABond formationBBond breakageCBond formation and breakageDIonic bonds Like 0 Discuss 0Share