The diagram shows an experiment to investigate the corrosion of iron. What happens to the water level in tubes $$\(P\)$$ and $$\(Q\)$$ ?
A.
B.
C.
D.
Exam No：0620_s25_qp_11 Year：2025 Question No：29
Answer:
B
Knowledge points:
3.1.8. Deduce the symbol equation with state symbols for a chemical reaction, given relevant information
Solution:
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