Chemistry · May / June 2023 · Paper 62 · Question 1
0620
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The question as text
Hot powdered lead(II) oxide is reduced by methane, a flammable gas. The products are lead, steam and carbon dioxide gas. Fig. 1.1 shows the apparatus used to reduce lead(II) oxide using excess methane. methane powdered lead(II) oxide waste gases A ice B Fig. 1.1
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1(a)[1]
beaker
1(b)[1]
arrow pointing upwards towards lead oxide
1(c)[1]
(the powder has) larger surface area / reacts faster / rate increases
1(d)[2]
M1 (ice) cools (steam / vapour / gas)
M2 (steam / vapour / gas) condenses / water (collects / forms)
1(e)[1]
(methane is) flammable
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