OCR A Level ChemistryHaloalkanes

Describe and explain the rate of hydrolysis down group 7 - -increase down group 7 What are haloalkanes? - compounds containing the elements carbon, hydrogen and at least one halogen What are primary haloalkanes? - the halogen is attached to a carbon atom which is attached to one other carbon atom What are secondary haloalkanes? - the halogen is attached to a carbon atom which is attached to 2 other carbon atoms What are tertiary haloalkanes? - the halogen is attached to a carbon atom which is attached to 3 other carbon atoms Why do tertiary haloalkanes have a faster rate of reaction than secondary and primary haloalkanes? - tertiary carbocations are more stable than secondary and primary carbocations Are haloalkanes polar or non-polar molecules? - polar as the halogen atoms are more electronegative than carbon atoms What is a nucleophile? - an atom (or group of atoms) that is attracted to an electron-deficient centre or atom, where it donates a pair of electron