Electrophile Study guides, Revision 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...

BIO 101 EXAM QUESTIONS AND CORRECT DETAILED ANSWERS What makes the "head" of a phospholipid hydrophilic? A) The even distribution of electrons across the fatty acids makes the head polar. B) The uneven distribution of electrons across the fatty acids makes the head polar. C) The phosphate group carries a negative charge, making the head polar. D) The phosphate group carries a negative charge, making the head nonpolar - ANSWER C Which would most likely pass unaided through a pla...

Isomers - Answer-Two different molecules that have the same chemical formula structural isomers - Answer-Differ in arrangement of atoms. Stereoisomers - Answer-Compounds with the same structural formula but with a different arrangement of the atoms in space. Enantiomers - Answer-isomers that are mirror images of each other diastomers - Answer-stereoisomers that are not mirror images functional groups (8) - Answer-Alkyl, Hydroxyl, Carbonyl, Carboxyl, Amino, Sulfhydryl, Phosphate, Amide Al...

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 ...

IR Spectra correct answer: -Absorption of radiation causes vibrational excitation of functional groups *making it easy to ID functional groups* *0-5000cm-1* H NMR Spectra correct answer: *0-12ppm* C NMR Spectra correct answer: *0-200ppm* Mass Spec correct answer: -Used to measure the molecular weight (mass) of the compound. Alkyne Reactions correct answer: *1* Alkyne + H2/Pd &C = Alkene *2* Alkyne + H2/Lindlav Cat.= Cis Alkene *3* Alkyne + Li or Na/Liquid NH3= Trans Alkene ...

what factors explain the outcomes of reactions? - ANSWERhybridization, delocalization, eN, atom density what is a leaving group? - ANSWER- group of atom(s) that can be stable on its own - eN atoms that are good LG also make strong acids what is the α carbon? - ANSWERC directly attached to leaving group what are β Cs? β Hs? - ANSWERβC: C(s) attached to α carbon βH: H(s) attached to βC what is a LB? is it a nucleophile or electrophile? - ANSWERlewis base, nucleophile what i...

Chem 210 Exam 3 Questions & Answers(Rated A+) what factors explain the outcomes of reactions? - ANSWERhybridization, delocalization, eN, atom density what is a leaving group? - ANSWER- group of atom(s) that can be stable on its own - eN atoms that are good LG also make strong acids what is the α carbon? - ANSWERC directly attached to leaving group what are β Cs? β Hs? - ANSWERβC: C(s) attached to α carbon βH: H(s) attached to βC what is a LB? is it a nucleophile or elec...

best to prepare m-choroaniline from benzene? HNO2/H2SO4; Cl2/AlCl3; SN/HCl; HO- best to prepare p-chlorotoluene in high yield? start with p-aminotoluene; NaNO2/HCl, 0C; CuCl best to prepare m-dibromobenzene from benzene? nitrate; brominate; Sn/HCl; NaNO2; 0 C; CuBr electrophilic aromatic substitution Nitro ? N Group, Nitrogen M-director, destabilized META, less than ortho, para electrophilic aromatic substitution -NHCOCH3 ? Activator, o-p director reaction with Bromine substituent ? Br...

what factors explain the outcomes of reactions? hybridization, delocalization, eN, atom density what is a leaving group? - group of atom(s) that can be stable on its own - eN atoms that are good LG also make strong acids what is the α carbon? C directly attached to leaving group what are β Cs? β Hs? βC: C(s) attached to α carbon βH: H(s) attached to βC what is a LB? is it a nucleophile or electrophile? lewis base, nucleophile what is nucleophilic ...

what factors explain the outcomes of reactions? - ANSWERhybridization, delocalization, eN, atom density what is a leaving group? - ANSWER- group of atom(s) that can be stable on its own - eN atoms that are good LG also make strong acids what is the α carbon? - ANSWERC directly attached to leaving group what are β Cs? β Hs? - ANSWERβC: C(s) attached to α carbon βH: H(s) attached to βC what is a LB? is it a nucleophile or electrophile? - ANSWERlewis base, nucleophile what i...