Chemistry A2 OCR 3.0 / 5 based on 1 rating ? ChemistryA2/A-levelOCR Created by: LaurenCreated on: 11-12-12 16:08 What are delocalised electrons? Electrons shared between more than two atoms. 1 of 4 What is an addition reaction? A reaction where a reactant is added to an unsaturated molecule to make a saturated molecule. 2 of 4 What is a substitution reaction? A reaction where an atom or group of atoms is replaced with a different atom or group of atoms. 3 of 4 What catalyst does benzene need to react with a halogen? Halogen carrier 4 of 4
Comments
Report