Chemistry · May / June 2026 · Paper 41 · Question 1
0620
As printed in the paper
The question as text
A list of symbol equations and word equations, A to J, is shown. A ethene + hydrogen ethane B 2KBr + C! 2 2KC! + Br2 C A! 3+ + 3e– A! D glucose ethanol + carbon dioxide E 6CO2 + 6H2O C6H12O6 + 6O2 F N2 + 3H2 2NH3 G calcium carbonate calcium oxide + carbon dioxide H C8H18 C6H14 + C2H4 l sulfur dioxide + oxygen sulfur trioxide J glucose + oxygen carbon dioxide + water Each equation may be used once, more than once, or not at all. Give the letter, A to J, for the equation that represents:
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Show the answer and mark scheme
1(a)[1]
G
1(b)[1]
I
1(c)[1]
H
1(d)[1]
E
1(e)[1]
F
1(f)[1]
B
1(g)[1]
D
Q2(a) REJECT wrong formulas in all parts e.g. chlorine / C is CON e.g. silver / AG is CON REJECT wrong names e.g. chloride / Cl2 is CON
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