Electrophilic Study guides, Class notes & Summaries

Write complete names for the following: a) (S,S)-3,5-dihydroxycyclohexanone b) (E)-5-methyl-4-oxo-5-heptenal c) 4-methoxy-2-nitrobenzaldehyde d) 1-methyl-3-methylthio-2,4,6-cycloheptatrienol e) CHEM 335 Final Exam Questions and Answers | Verified Answers| Updated 2024/2025 2/11 pentamethylcyclopentadienyl anion 2. (15 points) Write accurate structures for the following: a) a chiral allene b) 18-crown-6 c) the HOMO of 1,3,5-hexatriene d) benzyl isobutyl disulfide e) the hydrat...

In nucleophilic substitution reactions with alkyl halides the leaving group is? A) A hydroxide group. B) A halide anion. C) A halide cation. D) A carbon atom. E) An ester. - CORRECT ANSWER-B) A halide anion. Rank the following ions in terms of their leaving group reactivity. Br-, Cl-, I-, F-. A) Br- > Cl- > F- > I-. B) I- > Br- > Cl- > F-. C) Cl- > Br- > F- > I-. D) F- > Cl- > Br- > I-. E) F- > Cl- > Br- > I-. - CORRECT ANSWER-B) I- > Br...

OCR A LEVEL CHEMISTRY ORGANIC SYNTHESIS WITH COMPLETE SOLUTIONS alkene undergoes what type of polymerisation - CORRECT-addition  polymerisation Alkene to alcohol - CORRECT -Electrophilic addition  conc (phosphoric) acid catalyst  steam Haloalkane to nitrile - CORRECT -nucleophilic substitution ethanolic NaCN or KCN heat Haloalkane to primary amine (also makes NH4X) - CORRECT -Nucleophilic  substitution  Excess ethanolic NH3 with no further substitution HEAT under PRESSURE ac...

OCR A LEVEL CHEMISTRY ORGANIC SYNTHESIS WITH COMPLETE SOLUTIONS alkene undergoes what type of polymerisation - CORRECT-addition  polymerisation Alkene to alcohol - CORRECT -Electrophilic addition  conc (phosphoric) acid catalyst  steam Haloalkane to nitrile - CORRECT -nucleophilic substitution ethanolic NaCN or KCN heat Haloalkane to primary amine (also makes NH4X) - CORRECT -Nucleophilic  substitution  Excess ethanolic NH3 with no further substitution HEAT under PRESSURE ac...

Which of the following reagents would you use as the basis for a simple chemical test that would distinguish between ethylbenzene and styrene?. Cyclohexene undergoes addition reaction with bromine, but benzene does not. Instead benzene undergoes a substitution reaction with bromine. Explain whyWhich chemical test would you use to distinguish between ethylbenzene and styrene? Ans: Styrene will react with Br2/CCl4, whereas ethylbenzene will not react.. Provide all the resonance structures of the s...

Edexcel A-level Chemistry Organic Chem Reactions Question and answers 100% correct 2023/2024Alkane to Halogenoalkane - correct answer Halogen and UV light (free radical substitution) Alkene to Alkane - correct answer Hydrogen gas, Nickel catalyst and 150°C (addition) Use of catalytic hydrogenation - correct answer Manufacture of margarine from unsaturated vegetable oils Alkene to Dihalogenoalkane - correct answer Add bromine LIQUID and shake (electrophilic addition) Alkene to hydro

Basicity rules correct answers -strong base: unstable/reactive (ED groups) -weak base: stable (EW groups/more EN/bigger) Chair conformation correct answers -more stable equitorial (slanted) -pointing up/pointing down=cis if both up -elimination: trans and diaxial Newman projection correct answers -gauche: substituent groups adjacent to eachother -grab middle and turn to put in plane Enantiomers correct answers -not superimposable mirror images -same besides stereochemistry Diast...

sp Hybridization - ️️2 SP + 2 π orbital Linear geometry at carbon sp² Hybridization - ️️3 SP + 1 π orbital Trigonal planar geometry at carbon sp³ Hybridization - ️️4 SP orbitals Tetrahedral geometry Antibonding MOs - ️️Destructive interference waves created by high energy electrons in MO models (Node is always present in antibonds) Bonding MOs - ️️Constructive interference waves created by lower energy electrons in MO models (No nodes, but beware of node-li...

OCR AS LEVEL CHEMISTRY B (SALTERS) H033/01 FOUNDATIONS OF CHEMISTRY ACTUAL 2024 COMPLETE EXAM V1 WITH ACCURATE ANSWERS A+ GRADE ASSURED.CHECK LAST PAGE FOR ANSWERS 1 What is the outer subshell electron configuration of an element in Group 16 of the Periodic Table? A p4 B p5 C p6 D p16 Your answer [1] 2 Geiger and Marsden fired α-particles at a gold foil. What happened in their experiment? A The α-particles were scattered randomly. B Most α-particles passed through unde...

OCR CHEMISTRY A LEVEL WITH COMPLETE SOLUTIONS   Haloalkane to nitrile - ANSWER-nucleophilic substitution ethanolic NaCN or KCN heat Haloalkane to primary amine (also makes NH4X) - ANSWER-Nucleophilic substitution Excess ethanolic NH3 with no further substitution HEAT under PRESSURE acyl chloride/acid anhydride to SECONDARY amide - ANSWER-Nucleophilic substitution primary amine Acyl chloride/acid anhydride to PRIMARY amide - ANSWER-Nu...