1
Q
Polluting gas that forms acid rain?
A
Nitrogen oxide.
2
Q
Haematite?
A
Iron oxide.
3
Q
Limestone?
A
Calcium carbonate.
4
Q
How would you know when neutralisation is complete?
A
Temperature stays constant.
5
Q
Raw material in fermentation?
A
Sugar.
6
Q
Electrolysis where water and hydrogen are produced?
A
4OH– → 2H2O + O2 + 4e–
Chemistry CGP Paper 2
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