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CHEM 219 / CHEM219 Module 5: (NEW 2025/ 2026 Update) 100% Correct - Portage Learning
Typology: Exams
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Completel thel followingl tablel describingl thel variousl typesl ofl nucleophilicl additionsl tol thel C=Ol ofl aldehydesl andl ketones Answer: a)l al dioll b)l al hemiacetall c)l anl iminel
d)l al cyanohydrin
l Matchl thel IUPACl esterl name Answer: Pentyll Butanoate
l matchl thel IUPACl esterl name
True
acidl halidesl arel thel mostl reactivel derivativesl ofl carboxylicl acids,l duel tol thel highl electronegativityl ofl thel halogens
True
Thel greaterl reactivityl ofl acidl anhydridesl comparedl tol estersl isl duel tol thel absencel ofl thel additionall carbonyll groupl inl thel anhydride
True
carboxylicl acidsl andl derivativesl tendl tol reactl byl nucleophilicl acyll substitutionl sincel thel C=Ol isl bondedl tol al goodl leavingl group
True
Thel strongl hydrogenl bondingl interactionsl betweenl twol carboxylicl acidl moleculesl significantlyl raisel thel boilingl pointl ofl thesesl compoundsl comparedl tol alkanesl orl alkyll halidesl ofl comparablel molecularl weight.l Explainl thel specificl interactionsl thatl occurl betweenl twol moleculesl ofl al givenl carboxylicl acid. Answer: Mostl carboxylicl acidsl arel dimersl andl isl heldl togetherl byl twol mutuall hydrogenl bondingl interactions.
3 - methylpentan- 3
l partl 2)l Namel thel followingl alcoholl usingl IUPACl system Answer: cyclopropan- 1 - ol
l partl 2)l Namel thel followingl alcoholl usingl IUPACl system
3 - bromo- 2 - chlorophenol
l partl 2)l Namel thel followingl alcoholl usingl IUPACl system Answer: 3 - Chloro- 2 - methylbutanol
2 - bromo- 6 - chlorophenol
Partl 3 l Namel thel followingl alcoholl usl IUPACl systematicl nomenclature Answer: cyclehexanol
Partl 4 l Namel thel followingl alcoholl usl IUPACl systematicl nomenclature
2 - methyl- 2 - butanol
Generatel thel namel ofl thel alkenel products Answer: 1 - butene,l 2 - butenel majorl productl C=C
Matchl thel IUPACl esterl name
l Namel thel followingl alcoholl usingl IUPACl systematicl nomenclature Answer: cyclobutanol
l Namel thel followingl alcoholl usingl IUPACl systematicl nomenclature
2,6-dichlorophenol
l Namel thel followingl etherl usingl IUPACl systematicl nomenclature
2 - methoxyhexane
Partl 2 Answer: [12]l Crown- 4
Thel ionicl radiusl ofl thel potassiuml ionl (K+)l isl 2.66A.l Usingl thel tablel below,l selectl thel bestl crownl etherl tol hostl thel potassiuml ionl asl al guest Answer: [18]l crown- 6
l Al chemistl isl tryingl tol synthesizel test-butyll methyll etherl byl al Williamsonl synthesis:l Thel chemistl reactsl methoxidel ionl withl 2 - bromo-2methylpropanel inl thel synthesis.l Wouldl shel getl thel desiredl productl inl al goodl yield?
