Carbocations - Study guides, Class notes & Summaries

E2 Reaction - One-Step with no intermediates, Base takes off proton + LG leaves with double bond formation. What type of carbons do E2 rxns favor? - Tertiary What is a Zaitsev product? - Double bond formation on more substituted carbon What is a Hoffman product? - Double bond formation on less substituted carbon When using a stericallly hindered base (t-BuOK, LDA), which product is more favorable? - Hoffman When using Eto- or less sterically hindered base, which pro...

CHEM 210 Final Exam Questions with Answers All Correct Which molecule is an ester - Answer All of the carbon backbones from amino acids end up as intermediates in the ________. - Answer-citric acid cycle When 2-butene reacts completely with bromine, the product is - Answer-2,3- dibromobutane. Amino acids that can be synthesized in the body are called ______ amino acids. - Answer-nonessential Which conversion is accomplished during glycolysis? - Answer-glucose to pyruvate Every turn of...

AQA A Level Chemistry: Year 1- Alkenes Already Passed What is an alkene? An unsaturated hydrocarbon What is an unsaturated hydrocarbon? A compound containing only carbon and hydrogen atoms and containing at least one carbon carbon double bond What are van der Waals forces? Relatively weak intermolecular forces caused by temporary dipole dipole interaction What is the general formula for an alkene? CnH2n How would you name an alkene given its displayed formula? Identify the longest carbon cha...

AQA A Level Chemistry: final exam Paper 2 Question and Answers What bonds does cracking break? C-C State the conditions for thermal cracking High pressure and high temperature State what thermal cracking produces A high percentage of alkenes, and a low percentage of alkanes State the conditions for catalytic cracking Slight pressure, high temperature and a zeolite catalyst State what catalytic cracking produces Motor fuels and aromatic hydrocarbons Explain economic reasons for crack...

Chapter 18 EAS Questions and Answers 100% correct Electrophilic Aromatic Substitution -reaction in which an electrophile is substituted for a hydrogen on an aromatic ring -many different types of EAS reactions based on what functional group replaces the hydrogen Alkene vs Benzene Alkenes undergo addition reactions but Benzenes react differently under similar reagents. Don't confuse the two, one is Aromatic and the other isn't. Aromatic Requirements The organic structure must...

Chapter 1-Structure and Bonding:Acids and Bases 1. How many total valence electrons are represented in the following electron configuration? 1s22s22px2 2py2 2pz1 or 1s22s22p5 a. 1 b. 3 c. 5 d. 7 e. 9 ANS: D Instructions: Write valid Lewis (electron-dot) structures for each formula below. Show all electrons as dots and show all nonbonding electrons. 2. Write: CH3CH2OH ethanol ANS: 3. The structure of urea is shown below. Fill in any nonbonding valence electrons that are missing from the l...

A Level Chemistry 13.4 Electrophilic addition in alkenes addition of a hydrogen halide to an unsymmetrical alkene forms the ? product via the ? carbocation. - correct answers1. major 2. most stable How are carbocations classified? - correct answersBy the number of alkyl groups attached to the positively charged carbon atom. how is an alkyl group represented? - correct answersnormally represented by the symbol -R. in 1870 Markownikoon a Russain chemist stated... - correct answersthat...

Describe and explain the rate of hydrolysis down group 7 - -increase down group 7 What are haloalkanes? - compounds containing the elements carbon, hydrogen and at least one halogen What are primary haloalkanes? - the halogen is attached to a carbon atom which is attached to one other carbon atom What are secondary haloalkanes? - the halogen is attached to a carbon atom which is attached to 2 other carbon atoms What are tertiary haloalkanes? - the halogen is attached to a carbon atom w...

Describe and explain the rate of hydrolysis down group 7 - -increase down group 7 What are haloalkanes? - compounds containing the elements carbon, hydrogen and at least one halogen What are primary haloalkanes? - the halogen is attached to a carbon atom which is attached to one other carbon atom What are secondary haloalkanes? - the halogen is attached to a carbon atom which is attached to 2 other carbon atoms What are tertiary haloalkanes? - the halogen is attached to a carbon atom w...

A Level Chemistry 13.4 Electrophilic addition in alkenes addition of a hydrogen halide to an unsymmetrical alkene forms the ? product via the ? carbocation. - correct answers1. major 2. most stable How are carbocations classified? - correct answersBy the number of alkyl groups attached to the positively charged carbon atom. how is an alkyl group represented? - correct answersnormally represented by the symbol -R. in 1870 Markownikoon a Russain chemist stated... - correct answersthat...