A-LevelChemistryNitrogen and sulfur9701/12 · May/June 2017 · Q361 Mark
Acid rain continues to be a problem. Which statements about acid rain are correct? 1 Acid rain is formed when oxides of nitrogen or oxides of sulfur react with water in the atmosphere. 2 Acid rain causes an increase in the concentration of heavy metal ions in water courses. 3 Nitrogen dioxide will catalyse the formation of SO₃ from SO₂ in the atmosphere.
A1, 2 and 3 are correct
B1 and 2 only are correct
C2 and 3 only are correct
D1 only is correct
✓ Correct answer
A: 1, 2 and 3 are correct
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