1.1. Trichloromethane is one of the products formed when dichloromethane reacts with excess chlorine in UV light.

i) Name this mechanism.

[1]

ii) Write equations for the initiation and propagation steps.

[3]

1.2. Write an overall equation for formation of dichloromethane from chloromethane.

1.3. A compound was found to have 20.3 % carbon, 48.1 % fluorine, 30.0 % chlorine and 1.6 % hydrogen. Calculate the empirical formula for this compound.

1.4. Suggest the structural formula of two bromine containing compounds that are formed during the reaction of bromine and dibromomethane in the presence of UV light .