Organic Chemistry Test 2 Organic Chemistry Test 1 1 / 10Which statement about resonance is correct? Resonance structures are in equilibrium with each other Resonance hybrid is less stable than any contributing structure Resonance involves movement of σ-bonds only Resonance hybrid has lower energy than all canonical forms 2 / 10Which has the highest acidity? Ethane Ethyne Ethene Benzene 3 / 10Which conformer of n‑butane has maximum potential energy? Anti Gauche Eclipsed (methyl–methyl) Eclipsed (methyl–hydrogen) 4 / 10IUPAC name of tert‑butyl alcohol is: 2‑propanol 2‑methyl‑2‑propanol 1‑methyl‑1‑propanol 2‑butanol 5 / 10Correct order of carbocation stability is: 3° > 2° > 1° > methyl 1° > 2° > 3° > methyl 2° > 3° > 1° > methyl methyl > 1° > 2° > 3° 6 / 10In the chlorination of methane (radical substitution), the initiator is typically: Cl₂ UV light or heat HCl AlCl₃ 7 / 10Identify the major product of the following E1 reaction: 2‑bromobutane → ? (ethanolic medium, heat) But‑1‑ene (major) But‑2‑ene (major) 2‑bromobut‑2‑ene Butane 8 / 10Which reagent converts an alcohol to alkyl bromide most efficiently? HBr (conc.) PBr₃ SOCl₂/pyridine NaBr + H₂SO₄ (aq 9 / 10Phenol is more acidic than ethanol due to: +I effect of phenyl group Resonance stabilization of phenoxide ion Hydrogen bonding in ethanol Steric hindrance in phenol 10 / 10Which carbonyl compound gives a positive iodoform test? Formaldehyde Acetaldehyde Benzaldehyde Propanal Your score isThe average score is 0% 0% Restart quiz