F324 Definitions 0.0 / 5 ? ChemistryF324A2/A-levelOCR Created by: sophiec10Created on: 25-02-14 17:17 Electrophile Electron Pair Acceptor 1 of 14 Substitution A reaction in which one atom or group is replaced by another atom or group 2 of 14 Nucleophile Lone Pair Donor 3 of 14 Addition A reaction in which two molecules join to form one molecule 4 of 14 Hydrolysis Reaction with water to split up a molecule 5 of 14 Triglyceride A tri-ester of glycerol and 3 fatty acids 6 of 14 Zwitterion An ion, typically found in amino acids, that has both a negative and positive charge 7 of 14 Stereoisomers Same structural formula, different 3-dimensional arrangement 8 of 14 Chiral Centre A carbon atom bonded to four different atoms or groups 9 of 14 Optical Isomers Non-super imposable mirror images about an organic chiral centre 10 of 14 Optical Activity Ability of Chiral Molecules to rotate plane-polarised light 11 of 14 Condensation Polymerisation Reaction between two different types of molecule to give a polymer accompanied by the loss of a small molecule such as water 12 of 14 Retention Time The characteristic time it takes for a particular substance to pass through the system under set conditions 13 of 14 Rf Value Distance traveled by solute/distance traveled by solvent 14 of 14
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