Atomic StructureBohr Radius of Hydrogen-Like Species211Choose 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 Configuration212Choose 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 Rule213Choose the best answerAccording to the Aufbau principle, which subshell is filled first?A4dB5pC5sD4d and 5s simultaneously Like 0 Discuss 0Share
XIIMDCAT Chemistry Test#Benzene & Aromatic Compounds#Benzene Sulphonation214Choose the best answerWhat is the electrophile in the sulphonation of benzene?ASO₃+BSO₄²⁻CHSO₄+DSO₃ Like 1 Discuss 0Share
SINDH MDCAT 2018 Chemistry#Molarity#Stoichiometry215Choose the best answer106 grams of Na₂CO₃ per dm³ of solution of Na₂CO₃ in water, the concentration of the solution will be: (Sindh MDCAT 2018)A1NB0.1MC1MD0.02M Like 7 Discuss 0Share1