StoichiometryPercentage Composition by Mass926Choose the best answerWhat mass of oxygen is present in 72 g pure H₂O?A16 gB32 gC64 gD70 g Like 0 Discuss 0Share
SolidsIonic Solids927Choose the best answerWhich of the following is an ionic crystal?ADiamondBLiFCLiDSi Like 0 Discuss 0Share
Periodic TableIonization Energy Exceptions928Choose the best answerWhich pair correctly represents both exceptions in the first-ionization-energy trend of Period 2?ABe < B and N < OBBe OCBe > B and N > ODBe > B and N < O Like 0 Discuss 0Share
BUMHS MDCAT 2025 Chemistry#Macromolecules#Nylon-6,6929Choose the best answerWhich monomer is used for synthesis of nylon 6,6? (BUMHS MDCAT 2025)Asobacoyl chlorideBmethylene diamineCheptane-1,7-dioic acidDhexamethylene diamine Like 0 Discuss 0Share
MDCAT Chemistry Past Paper 2023#Atomic Structure#Quantum Numbers930Choose the best answerWhich of the following has only one orientation in space in the magnetic field? (MDCAT 2023)Ap orbitalBs orbitalCd orbitalDf orbital Like 0 Discuss 0Share