Fundamental Principles of Organic ChemistryTautomerism1461Choose 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
Atomic Structure STBAtomic Structure MCQs (STB)#Atomic Spectrum#Atomic Structure1462Choose the best answerWhat type of spectrum contains dark lines on a continuous bright background?AEmission-line spectrumBContinuous spectrumCAbsorption-line spectrumDBand spectrum Like 1 Discuss 0Share
StoichiometryIntroduction to Stoichiometry1463Choose the best answerStoichiometry deals with quantitative relationships between the _____ of reactants and products.ANumber of molesBMassesCVolumes of gasesDAll of these Like 1 Discuss 0Share
Atomic StructureShapes of Atomic Orbitals1464Choose the best answerWhen ℓ = 1, the orbital belongs to a:ANon-directional subshellBSpherically symmetrical s-subshellCp-subshell with dumbbell-shaped orbitalsDf-subshell Like 0 Discuss 0Share
Stoichiometry Stoichiometry MCQS#Avogadro's Number1465Choose the best answerWhat is the correct meaning of 1 mol of CaCO₃?A6.02 × 10²³ molecules of CaCO₃B6.02 × 10²³ formula units of CaCO₃C6.02 × 10²³ Ca atoms onlyD6.02 × 10²³ grams of CaCO₃ Like 0 Discuss 0Share