Select the answer to each question from the chlorides listed below.
aluminium chloride
ammonium chloride
cobalt(II) chloride
hydrogen chloride
iron(III) chloride
potassium chloride
silver chloride
sodium chloride
You may use any chloride once, more than once, or not at all.
State which chloride:
(a)[1]
has a cation with a $2+$ charge
(b)[1]
reacts with aqueous sodium hydroxide to give a red-brown precipitate
(c)[1]
is not soluble in water
(d)[1]
reacts with sodium hydroxide on warming to produce a gas that turns damp red litmus paper blue
(e)[1]
when placed in water can make an aqueous solution with pH 1
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “The answer is cobalt(II) chloride.” …