(a)[1]
State the name used for the positive electrode.
(b)[2]
Predict the products formed during the electrolysis of molten lead(II) bromide at: the negative electrode the positive electrode
(c)[3]
Describe how you could obtain crystals of sodium bromide from a mixture containing solid lead(II) bromide and solid sodium bromide.
(d)[2]
Name the orange-brown substance. Suggest, using ideas about the reactivity of the halogens, why the reaction takes place.
(e)[1]
What colour is the precipitate when aqueous silver nitrate is added to aqueous sodium bromide?
(f)[1]
Complete the sentence about how a chloride ion is formed from a chlorine atom. A chloride ion forms when a chlorine atom gains one [BLANK].