OCR Organic Chemistry AS Module 4 4.0 / 5 based on 8 ratings ? ChemistryOrganic ChemistryASOCR Created by: Rosie CCCreated on: 22-03-17 13:22 What conditions are needed for free radical substitution? UV Light 1 of 42 Alkanes + Halogens -> ? Haloalkanes 2 of 42 Alkenes + Halogens -> ? (in organic solvent) Dihaloalkanes 3 of 42 Alkanes + Halogens is an example of what kind of reaction? Free Radical Subsitution 4 of 42 Alkenes + Halogens is an example of what kind of reaction? Electrophilic addition 5 of 42 Dehydrating an alcohol requires what conditions? Strong acid catalyst and heat 6 of 42 Alcohol (dehydration) -> ? Alkene 7 of 42 Dehydration of an alcohol is what type of reaction? Elimination 8 of 42 Dehydration of an alcohol is what type of reaction? Elimination [the water has been eliminated] 9 of 42 Haloalkane (hydrolysed) -> ? alcohol 10 of 42 Hydrolysing a haloalkane is what kind of reaction? Nucleophilic substitution 11 of 42 What does a curly arrow in a reaction demonstrate? The movement of electrons 12 of 42 Alkene + Hydrogen -> ? Alkane 13 of 42 What are the conditions for Alkene + Hydrogen? Nickel catalyst and 150 degrees celcius 14 of 42 Alkene + Hydrogen Halide -> ? Haloalkane 15 of 42 Alkene + Halogen -> ? (in aqueous solvent? Haloalcohol 16 of 42 Alkene + Water -> ? Alcohol 17 of 42 What are the conditions for alkene + Water? conc. H3PO4 catalyst and 300 degrees celcius 18 of 42 Which is more stable: a carbon atom bonded with two carbon atoms/ one carbon atom? Carbon bonded with two other carbon atoms is more stable. 19 of 42 What is the definition of an electrophile? An electron pair acceptor 20 of 42 What is the definition of a nucleophile? An electron pair donator 21 of 42 What is the difference between a radical and an ion? A radical has the same ratio of protons:electrons so isn't charged. 22 of 42 What is a structural isomer? compounds with the same molecular formula but different structural formula 23 of 42 What is a stereoisomer? Compounds with the same molecular and structural formula but a different arrangement in space? 24 of 42 What is a pi bond? Overlapping p orbitals 25 of 42 What are some properties of pi bonds? Cannot rotate and weak 26 of 42 What is a sigma bond? Overlapping s orbitals 27 of 42 Why aren't alkanes very reactive? High bond enthalpy and low polarity of sigma bonds (alkanes don't have pi bonds) 28 of 42 a-b (heterolytic fission) -> ? a* + b* 29 of 42 a-b (homolytic fission) -> ? a+ (positive ion) + **b- (Negative ion) 30 of 42 What does the term saturated mean? No double bonds 31 of 42 What are the products when alkanes undergo complete combustion? CO2 and H2O 32 of 42 What is the bond angle around the C=C in an alkene? 120 degrees celcius 33 of 42 How does the CIP priority rule work in E/Z stereoisomers? The group with the highest molar mass is the priority 34 of 42 What is the process that turns an alkene into a polymer? Addition polymerisation 35 of 42 Product when a primary alcohol is oxidised and filtered off? Aldehyde 36 of 42 Oxidising agent used? Oxidising agent = potassium dichromate (K2Cr2O7) 37 of 42 Product when a primary alcohol is oxidised and refluxed? Carboxylic acid 38 of 42 Product when a secondary alcohol is oxidised and refluxed? Ketone 39 of 42 Product when a tertiary alcohol is oxidised? Nothing - it cannot be oxidised 40 of 42 Dehydration of an alcohol requires what conditions? 170 degrees celcius, under reflux, with conc. sulfuric/phosphoric acid 41 of 42 Chlorine + ozone -> ? (with UV light) Oxygen 42 of 42
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