Chemistry · May / June 2024 · Paper 42 · Question 1
0620
As printed in the paper
The question as text
A list of gases is shown. ammonia helium hydrogen carbon dioxide carbon monoxide chlorine methane nitrogen dioxide propene sulfur dioxide Answer the following questions about these gases. Each gas may be used once, more than once or not at all.
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Show the answer and mark scheme
1(a)(i)[1]
methane
1(a)(ii)[1]
nitrogen dioxide
1(a)(iii)[1]
propene
1(a)(iv)[1]
helium
1(a)(v)[1]
carbon monoxide
1(b)[2]
2NO2 + 4CO → N2 + 4CO2
M1 N2 + CO2 as only products
M2 correct equation
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