Atomic StructureAufbau Principle and n + ℓ Rule2146Choose the best answerAccording to the Aufbau principle, which subshell is filled first?A4dB5pC5sD4d and 5s simultaneously Like 0 Discuss 0Share
Atomic StructureElectronic Configuration2147Choose the best answerThe electronic configuration: 1s² 2s² 2pₓ¹ 2pᵧ¹ 2pz¹ corresponds to:AOxygenBNitrogenCHydrogenDFluorine Like 0 Discuss 0Share
Chemistry of HydrocarbonsTest for Terminal Alkynes2148Choose the best answerWhich reagent is commonly used to test for a terminal alkyne?ANaOH(aq)BAmmoniacal AgNO₃CBr₂/CCl₄DDilute HCl Like 2 Discuss 0Share
BasicsStoichiometry #Atomic Structure#Isotopes2149Choose the best answerWhy is the atomic mass of chlorine about 35.5 u?AIt has only one isotopeBIt exists as isotopes of Cl-35 and Cl-37CIt is found in equal proportionsDIt has an atomic number of 17 Like 0 Discuss 0Share
MDCAT Chemistry Paper 2025#Aldehydes and Ketones#Carbonyl Compounds2150Choose the best answerDuring Clemmensen reduction of aldehyde and ketone, carbonyl group into alkane group is carried out with: (IBA MDCAT 2025)AH₂ and PdBLiAlH₄CZn/Hg conc. HClDNH₂–NH₂/KOH Like 28 Discuss 0Share1