CIE A Level Chemistry复习笔记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复习笔记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复习笔记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...
CIE A Level Chemistry复习笔记3.1.11 Stereoisomerism
Stereoisomerism: Geometrical & Optical Stereoisomers are compounds that have the same atoms connected to each other, however the atoms are differently arranged in space There are two types of s...
CIE A Level Chemistry复习笔记3.1.10 Structural Isomerism
Structural Isomerism: Chain, Position & Functional Group Structural isomers are compounds that have the same molecular formula but different structural formulae Eg. propene and cyclopropane Bot...
CIE A Level Chemistry复习笔记3.1.9 Planarity of Organic Molecules
Planar Molecules Planar molecules have all their atoms in the same plane Eg. linear, bent, trigonal planar and square planar Molecules which have all their atoms in the same plane The presence of a...
CIE A Level Chemistry复习笔记3.1.8 Hybridisation in Organic Molecules
Hybridised Atoms: Shapes & Bond Angles in Molecules Each carbon atom has four electrons in its outer shell (electronic configuration: 1s22s22p2) Carbon atoms share these four electrons in four ...
CIE A Level Chemistry复习笔记3.1.7 Shapes of Organic Molecules; Sigma & Pi Bonds
Straight, Branched & Cyclic Molecules Straight, branched and cyclic organic molecules are also called aliphatic compounds as long as they do not contain a benzene ring Straight-chain Straight-c...
CIE A Level Chemistry复习笔记3.1.6 Terminology Used in Reaction Mechanisms
Terminology Used in Reaction Mechanisms In organic reaction mechanisms, curly arrows represent the movement of electron pairs The arrow beings at a bond or a lone pair of electrons and points to th...
