When hot concentrated hydrochloric acid reacts with solid manganese(IV) oxide, chlorine gas is produced. Chlorine gas is poisonous and denser than air. Concentrated hydrochloric acid is corrosive.
Fig. 1.1 shows the apparatus arranged to produce and collect a sample of chlorine gas.
There is a single mistake in how the apparatus has been arranged in Fig. 1.1.
(a)[1]
Name the piece of apparatus labelled X in Fig. 1.1.
(b)[1]
Identify the substance marked Y in Fig. 1.1.
(c)[1]
Name a piece of apparatus that could be used to heat X in Fig. 1.1.
(d)[1]
There is one mistake in how the apparatus has been set up. Describe one change that must be made to the apparatus in Fig. 1.1 to put this right.
(e)[1]
Explain why this experiment should be done in a fume cupboard.
Worked solution & mark scheme
This 5-mark question has a full step-by-step worked solution and mark scheme. One marking point: “a (conical) flask” …