MDCAT Chemistry Paper 2025#Gases#Standard Temperature and Pressure2506Choose the best answerSelect the standard condition for temperature and pressure: (IBA MDCAT 2025)A1 atm and 0KB760 torr and 25°CC2 bar and 25°CD14.7 psi and 0°C Like 0 Discuss 0Share
Carboxylic AcidsReaction with Sodium Metal2507Choose the best answerWhich of the following evolves hydrogen gas on reaction with sodium metal?AC₂H₅OHBCH₃COOHCBoth A and BDNeither A nor B Like 0 Discuss 0Share
Periodic TableElectron Affinity2508Choose the best answerElectron affinity is the energy change associated with:AAddition of an electron to an isolated gaseous atomBRemoval of an electron from an atomCBreaking a covalent bondDRemoving a proton from a nucleus Like 0 Discuss 0Share
Chemical BondingElectron-Pair Repulsions2509Choose the best answerWhich molecule has two lone pairs on the central atom and therefore shows LP–LP, LP–BP and BP–BP repulsions?ACH₄BBF₃CNH₃DH₂O Like 0 Discuss 0Share
Periodic TableIonization Energy Trend2510Choose the best answerAcross a period, first ionization energy generally:AIncreases from left to rightBDecreases from left to rightCRemains constantDBecomes zero Like 0 Discuss 0Share