Fundamental Principles of Organic ChemistryTautomerism161Choose the best answerWhich statement about tautomers is correct?AThey can always be isolated easily.BThey are merely resonance structures.CThey exist in dynamic equilibrium.DThey have different molecular formulas. Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryDextrorotatory and Levorotatory Compounds162Choose the best answerA compound that rotates plane-polarized light to the right is called:ALevorotatory (−)BD-isomer onlyCDextrorotatory (+)DL-isomer only Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryChain Isomerism163Choose the best answerWhich pair represents chain isomerism?AButan-1-ol and Butan-2-olBPentane and 2-MethylbutaneCEthanol and Dimethyl etherDPropanal and Propanone Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryClassification of Carbon Atoms164Choose the best answerThe molecule CH₃–C(CH₃)₂–CH₂–CH₃ contains:APrimary, secondary and tertiary carbons onlyBPrimary, secondary and quaternary carbons onlyCPrimary and quaternary carbons onlyDPrimary, tertiary and quaternary carbons only Like 0 Discuss 0Share
Fundamental Principles of Organic ChemistryHomologous Series165Choose the best answerWhich property generally changes gradually along a homologous series?AFunctional groupBType of chemical reactionsCBoiling pointDGeneral chemical behaviour Like 0 Discuss 0Share