CIE A Level Chemistry復習筆記3.2.7 Production of Alkenes
Production of Alkenes: Elimination, & Dehydration Reactions & Cracking Alkenes can be made by a series of reactions including?elimination,?dehydration reactions?and?cracking Elimination rea...
CIE A Level Chemistry復習筆記3.2.6 Combustion of Alkanes
Combustion of Alkanes & the Environment Cars’?exhaust fumes?include toxic gases such as?carbon monoxide?(CO),?oxides of nitrogen?(NO/NO2) and?volatile organic compounds?(VOCs) When released int...
CIE A Level Chemistry復習筆記3.2.5 Chemical Reactivity of Alkanes
Unreactivity of Alkanes Strength of C-H bonds Alkanes consist of carbon and hydrogen atoms which are bonded together by?single?bonds Unless a lot of heat is supplied, it is difficult to break these...
CIE A Level Chemistry復習筆記3.2.4 Cracking of Alkanes
Obtaining Useful Compounds by Cracking Crude oil Crude oil is a?mixture?of hydrocarbons containing?alkanes,?cycloalkanes?and?arenes?(compounds with a benzene ring) The crude oil is?extracted?from t...
CIE A Level Chemistry復習筆記3.2.3 Free Radical Substitution
Free Radical Substitution Mechanism Alkanes can undergo?free-radical substitution?in which a hydrogen atom gets?substituted?by a halogen (chlorine/bromine) Ultraviolet?light?(sunlight)?is needed fo...
CIE A Level Chemistry復習筆記3.2.2 Combustion & Free Radical Substitution of Alkanes
Combustion & Free Radical Substitution of Alkanes Alkanes are?combusted?(burnt) on a large scale for their use as fuels They also react in?free-radical substitution?reactions to form more react...
CIE A Level Chemistry復習筆記3.2.1 Alkanes
Production of Alkanes: Hydrogenation & Cracking Alkanes?are hydrocarbons that can be produced by the?addition?reaction?of hydrogen to an alkene or by?cracking?of longer alkane chains Production...
CIE A Level Chemistry復習筆記3.1.13 Isomers of Organic Compounds
Deducing Isomers of a Compound You should be able to deduce all possible isomers for organic compounds knowing their molecular formula Worked example: Isomers of dibromopropane Step 1:?Draw the str...
CIE A Level Chemistry復習筆記3.1.12 Chirality
Chirality & Enantiomers Chiral centres in non-cyclic molecules A?chiral?centre?in a molecule is a carbon atom that has four different atoms or group of atoms attached This gives rise to two opt...
