Stoichiometry Stoichiometry MCQS#Formula Mass221Choose the best answerWhy is the term molecular mass not used for NaCl?ANaCl has a very large mass.BNaCl exists only in the solid state.CNaCl does not exist as discrete molecules; it exists as a lattice of ions.DSodium is a metal. Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryCommon and IUPAC Names of Carbonyl Compounds222Choose the best answerWhich sequence is entirely correct?AFormaldehyde → Methanal; Acetaldehyde → Ethanal; Acetone → Propan-2-oneBFormaldehyde → Ethanal; Acetaldehyde → Propanal; Acetone → Propan-1-oneCFormaldehyde → Methanal; Acetaldehyde → Propanal; Acetone → Butan-2-oneDFormaldehyde → Ethanal; Acetaldehyde → Methanal; Acetone → Propan-2-one Like 0 Discuss 0Share
Atomic StructureBohr Radius of Hydrogen-Like Species223Choose the best answerWhich hydrogen-like species has an orbital radius equal to the first Bohr orbit of hydrogen?AHe⁺ at n = 2BLi²⁺ at n = 2CLi²⁺ at n = 3DBe³⁺ at n = 2 Like 0 Discuss 0Share
UHS MDCAT 2023 ChemistryUHS MDCAT 2023 Past Paper#Atomic Structure#Electronic Configuration224Choose the best answerWhich of the following electronic configuration is correct for ²⁴Cr? (UHS MDCAT 2023)A1s², 2s², 2p⁶, 3s², 3p⁶, 4s¹, 3d⁵B1s², 2s², 2p⁶, 3s², 3p⁶, 4s², 3d⁴C1s², 2s², 2p⁶, 3s², 3p⁶, 3d⁶D1s², 2s², 2p⁶, 3s², 3p⁶, 4f⁶ Like 0 Discuss 0Share
Atomic StructureAufbau Principle and n + ℓ Rule225Choose the best answerAccording to the Aufbau principle, which subshell is filled first?A4dB5pC5sD4d and 5s simultaneously Like 0 Discuss 0Share