Atomic StructureMass of Electron2626Choose the best answerThe mass of 2 mol electrons is approximately:A1.008 mgB0.55 mgC1.10 mgD0.275 mg Like 0 Discuss 0Share
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Bohr Model2627Choose the best answerWhich scientist proposed the 1913 atomic model based on Planck’s quantum theory?AJ.J. ThomsonBErnest RutherfordCNiels BohrDJames Chadwick Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryCommon and IUPAC Names of Organic Compounds2628Choose the best answerWhich pair is correctly matched?ALactic acid — 2-Hydroxypropanoic acidBTartaric acid — Butanedioic acidCMaleic acid — Butanedioic acidDEthyl acetate — Ethyl methanoate Like 0 Discuss 0Share
Atomic StructureElectronic Configuration of Ions2629Choose the best answerWhat is the correct ground-state electronic configuration of Fe³⁺, Z = 26?A[Ar] 3d⁵B[Ar] 3d³ 4s²C[Ar] 3d⁶ 4s²D[Ar] 3d⁵ 4s¹ Like 0 Discuss 0Share
SINDH MDCAT 2019 CHEMISTRY#Colour of Transition Compounds#Transition Elements2630Choose the best answerThe colour of transition metal complexes is due to: (Sindh MDCAT 2019)Ad-d transition of electronsBParamagnetic nature of transition elementsCLoss of s-electronsDRefraction phenomenon Like 0 Discuss 0Share