Fundamental Principles of Organic ChemistryIntroduction to Organic Chemistry101Choose the best answerAccording to the old definition of organic compounds, which compound was considered organic because it was obtained from a living source?ASodium chloride from seawaterBUrea from urineCCarbon dioxide from charcoalDCalcium carbonate from marble Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryRacemic Mixture and External Compensation102Choose the best answerA racemic mixture is optically inactive because of:AAbsence of chiral moleculesBExternal compensationCInternal compensationDResonance Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryMeso Form of Tartaric Acid103Choose the best answerWhich compound has optically active stereoisomers as well as a meso form?AEthanolBLactic acidCTartaric acidDAcetic acid Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryTetravalency of Carbon104Choose the best answerTetravalency of carbon means that:ACarbon usually forms four covalent bonds.BCarbon normally exists as C⁴⁺ in organic compounds.CCarbon cannot bond with oxygen.DCarbon forms only single bonds. Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryCoal and Types of Coal105Choose 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