StoichiometryGas Volume and Number of Moles1101Choose the best answerWhich sample contains the minimum number of moles at STP (273 K and 1 atm)?A1 dm³ CH₄B5 dm³ HeC10 dm³ H₂D22.4 dm³ Cl₂ Like 0 Discuss 0Share
MDCAT Chemistry Past PapersIBA MDCAT Chemistry Paper Reconduct 2024#Aldehydes and Ketones#Cannizzaro Reaction1102Choose the best answerIn Cannizzaro's reaction, formaldehyde reacts with: (IBA MDCAT Reconduct 2024)AChloroformBNaOHCWaterDHCl Like 0 Discuss 0Share
Chemical BondingHybridization1103Choose the best answerWhich molecule contains an sp³-hybridized central atom?ACH₄BC₂H₄CCO₂DC₂H₂ Like 0 Discuss 0Share
StoichiometryMole–Mass Stoichiometry1104Choose the best answerIf 2.25 mol O₂ reacts completely with Al, what mass of Al is consumed? 4Al + 3O₂ → 2Al₂O₃A81 gB54 gC49.5 gD27 g Like 0 Discuss 0Share
SolidsGeneral Properties of Solids1105Choose the best answerSolids are nearly incompressible because:ATheir particles have very high kinetic energyBTheir particles are closely packed with very little empty spaceCTheir particles are far apartDThey have very low density Like 0 Discuss 0Share