Fundamental Principles of Organic ChemistryStereoisomers of Tartaric Acid116Choose the best answerWhich statement is correct?ALactic acid has three stereoisomers.BTartaric acid has four optically active stereoisomers.CTartaric acid has two enantiomers and one meso form.DLactic acid possesses an internal plane of symmetry. Like 4 Discuss 0Share1
Fundamental Principles of Organic ChemistryCommon Names of Aromatic Compounds117Choose the best answerDurene is the common name of:A1,2,3-TrimethylbenzeneB1,2,4,5-TetramethylbenzeneC1,3,5-TrimethylbenzeneDPentamethylbenzene Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryOctane Number and Knocking118Choose the best answerKnocking in petrol engines can be reduced by:ACyclisationBBranchingCAromatisationDAll of these Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryMeso Compounds and Internal Compensation119Choose the best answerA meso compound is optically inactive because of:AExternal compensationBInternal compensationCAbsence of carbon atomsDResonance Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryOctane Number and Knocking120Choose the best answerA high octane number is generally associated with:AStraight-chain hydrocarbonsBBranched-chain hydrocarbonsCHigh sulfur contentDHigh moisture content Like 0 Discuss 0Share