Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Structure#Atomic Theory916Choose the best answerWho first proposed that matter is made of indivisible particles called “atomos”?ADalton and ThomsonBLeucippus and DemocritusCAristotle and RutherfordDBohr and Democritus Like 0 Discuss 0Share
MDCAT Chemistry Past Papers Reconduct 2023#Atomic Structure#X-Rays917Choose the best answerWho discovered X-rays? (MDCAT Reconduct 2023)AMarie CurieBJ. J. ThomsonCW. RoentgenDW. Rhenogen Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryCoal and Types of Coal918Choose the best answerThe correct order of increasing carbon content in coal is:APeat < Lignite < Bituminous < AnthraciteBLignite < Peat < Bituminous < AnthraciteCPeat < Bituminous < Lignite < AnthraciteDAnthracite < Bituminous < Lignite < Peat Like 0 Discuss 0Share
Nomenclature of Organic CompoundsNomenclature of Organic Compounds MCQs#Organic Nomenclature919Choose the best answerWhat is the correct IUPAC name of the ketone shown?A2,4-Dimethylhexan-3-oneB3,5-Dimethylhexan-4-oneC2-Ethyl-4-methylpentan-3-oneD2,4-Dimethylhexan-4-one Like 0 Discuss 0Share
MDCAT Chemistry Paper 2025#Chemical Bonding#Molecular Geometry920Choose the best answerWhich of the following molecules have similar molecular shape? (IBA MDCAT 2025)ANH₃ & AlCl₃BBCl₃ & NH₃CAlCl₃ & PCl₃DH₂O & SnCl₂ Like 0 Discuss 0Share