Nucleophile Study guides, Class notes & Summaries

AQA AS CHEMISTRY 7404/2 Paper 2 Organic and Physical Chemistry Question Paper + Mark scheme [MERGED] June 2022 *JUN* IB/M/Jun22/E7 7404/2 For Examiner’s Use Question Mark 1 2 3 4 5 6 7 Section B TOTAL Time allowed: 1 hour 30 minutes Materials For this paper you must have: • the Periodic Table/Data Sheet, provided as an insert (enclosed) • a ruler with millimetre measurements • a scientific calculator, which you are expected to use where appropriate. Instructions...

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-Nucleophilic substitution Alkene t...

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...

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...

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...

Why are enzymes really good catalysts? Correct Answer-Because enzyme active sites have evolved to catalyze reactions with maximum efficiency by using several catalytic mechanisms simultaneously Enzymes exhibit maximal activity under what kind of conditions? Correct Answer-Mild conditions, like conditions that exist in cells. Why are enzymes categorized as being extremely specific? Correct Answer-Because an enzyme usually catalyzes ONLY the reaction involving "its" substrate, even though ...

Reagent = Nucleophile Only - ANSWER1° = Sn2 2° = Sn2 3° = Sn1 + E1 (polar medium necessary) Reagent = Strong Nucleophile & Strong Base - ANSWER1° = Sn2 2° = E2 3° = E2 Reagent = Weak Nucleophile and Weak Base - ANSWER1°/2° = No Reaction 3°/resonance stabilized carbocation = Sn1 + E1 (polar medium necessry Reagent = Base Only - ANSWER1° = E2 or Sn2 (if unhindered and no beta-hydrogen with unhindered base) 2° = E2 3° = E2 Examples of Only Nucleophiles - ANSWERCl⁻, ...

Chem 210 Exam 3 Questions and Correct Answers, With Complete Solution. what face of the pi bond can EAR occur from? either face how many products do EARs on an alkene form? 4 stereoisomeric products Brainpower Read More in a substitution rxn, what does H-O act as? nucleophile and replaces LG in an elimination rxn, what does H-O acts as? base and abstracts BH atom what is a requirement for elimination rxns? beta hydrogen what is a requirement for substitution rxns? leaving group ...

Chem 210 – Reactions Questions 100% Answered!! Reagent = Nucleophile Only - ANSWER1° = Sn2 2° = Sn2 3° = Sn1 + E1 (polar medium necessary) Reagent = Strong Nucleophile & Strong Base - ANSWER1° = Sn2 2° = E2 3° = E2 Reagent = Weak Nucleophile and Weak Base - ANSWER1°/2° = No Reaction 3°/resonance stabilized carbocation = Sn1 + E1 (polar medium necessry Reagent = Base Only - ANSWER1° = E2 or Sn2 (if unhindered and no beta-hydrogen with unhindered base) 2° = E2 3° = E...

General formula for alkyl halide C(n)H(2n+1)X Vinyl halides A halogen atom bonded to a carbon-carbon double bond Aryl halides A halogen atom boned to a benzene ring True True or False: Vinyl and aryl halides are non reactive Why are vinyl and aryl halides non-reactive? The X is bonded to a C that is sp2 hybridized Allylic halides Have X bonded to the carbon atom adjacent to a C-C double bond benzylic halides Have X bonded to the carbon atom adjacent to a benz...