Haloalkanes Revision Cards

An alkane skeleton with one or more halogens in the place of a hydrogen atom.

e.g.

General formula: CnH2n+1X

(X is the halogen)

As the chain length increases so does the melting and boiling points.

M.P. and B.P. increase down the group.

Why?

Increased Van Der Waals -> beacuse they are a larger molecule, more electrons etc.

Insolube: C-X bond isn't polar enough to make it soluble.

Main intermolectular forces:

• Van Der Waals,
• Dipole Dipole

Uses?

• Dry cleaning fluids, when mixed with hydrocarbons.

When Haloalkanes react it is usually the C-X bond that will breaks