Organic chemistry ocr - Study guides, Revision notes & Summaries

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 ORGANIC CHEMISTRY YEAR 12 WITH VERIFIED QUESTIONS AND ANSWERS What is the melting and boiling points of alkanes like? - ANSWER--as chain length increases so does the strength of the intermolecular forces as there is greater surface area for contact between molecules and hence stronger london forces and therefore the melting/boiling points are highr for longer chain. What is a structura/chain isomer? - ANSWER--Same molecular formula but a different structural formula Wh...

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 Salters B Chemistry- Paper 3 Practical Skills exam with 100% complete solutions | Graded A+ Weighing a solid - -1. Zero the balance 2. Place weighing bottle/boat onto balance and add in the approximate required mass of solid 3. Accurately weigh solid and weighing bottle and record 4. Empty solid into glassware where it will be used 5. Accurately reweigh empty weighing bottle 6. Subtract recorded mass for empty weighing bottle from mass recorded for solid and weighing bottle Measuri...

A comprehensive summary of organic chemistry based on the OCR A Level Chemistry A H432 specification.

What are biodegradable plastics? - Ans .-Broken down by enzymes What are photodegradable plastics? - Ans .-Broken down by U.V. Light What is the general formula of alkanes? - Ans .CnH2n+2 Are alkanes saturated or unsaturated and why? - Ans .-Saturated -Each carbon atom forms four strong covalent, single, sigma bonds around it Are alkanes polar or non-polar and why and how does this affect their solubility and reactivity? - Ans .The electronegativities of carbon and hydrogen are very simila...

OCR A Level Chemistry A (H432) Chemistry B (H433) PAG 5: Synthesis of an organic liquid Practice Exam Questions and Mark Scheme 1. Ethanol is oxidised to ethanoic acid using acidified potassium dichromate(IV) solution. The reaction is heated under reflux using the equipment shown in the diagram below. What is the reason for heating under reflux? A. to ensure even heating B. to prevent any substances escaping C. to boil the mixture at a higher temperature D. to allow efficient mixing Yo...

Alkene + hydrogen /nickel catalyst/423K= - correct answer alkane Alkene + bromine /room temperature= - correct answer dihaloalkane Alkene + HCl(g/aq) /room temperature= - correct answer haloalkane (mixed products) Alkene + H2O(g) /H3PO4= - correct answer alcohol (mixed products) Primary alcohol + 2[O] /excess K2Cr2O7/H2SO4/reflux= - correct answer carboxylic acid Primary alcohol + [O] /K2Cr2O7/H2SO4/distil= - correct answer aldehyde Secondary alcohol + [O] /K2Cr2O7/H2SO4/reflux...

summary notes on the whole of module 4 in OCR A level chemistry, covering all of the topics, functional groups, synthetic pathways and practical techniques for year 1 organic chemistry. images and diagrams included from the kerboodle

summary notes on module 6 of organic chemistry OCR A level, including all subtopics and practical techniques, mechanisms, synthetic routes and spectroscopy / analytical techniques in year 2. including diagrams and explanations based on the kerboodle textbook.