Chemistry · May / June 2024 · Paper 42 · Question 2
0620
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The question as text
Alistoffivemetalsisshown. copper iron magnesium potassium silver
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2(a)(i)[1]
electron loss (from outer shell)
2(a)(ii)[1]
potassium
2(a)(iii)[1]
magnesium or potassium
2(a)(iv)[1]
iron
2(b)[3]
M1 Colourless
M2 Blue
M3 Colour given in
M2
2(c)(i)[1]
hydrogen
2(c)(ii)[1]
strontium hydroxide
2(c)(iii)[2]
M1 magnesium or Mg
M2 magnesium oxide
2(d)[3]
Fe3O4 + 8HCl → 2FeCl3 + FeCl2 + 4H2O
M1 FeCl2 or FeCl3 as product of equation
M2 FeCl2 and FeCl3 and H2O as only products of equation
M3 Correct equation
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