Question: Place a damp iron sheet into the wide-mouthed bottle shown and seal it, leaving it undisturbed for several days. Compared with an identical iron sheet left in ordinary air, which outcome is most likely for the iron sheet in the bottle?
A. Rusts faster throughout, forming a thicker rust layer
B. Rusting occurs at first but soon slows and stops, with overall less corrosion
C. Barely rusts at all because it is completely isolated
D. Is quickly and strongly corroded, dissolving into ions
Clues:
1. The image is a diptych showing a before and after state of an experiment.
2. A hand holds a glass slide over the mouth of a clear glass jar.
3. A wooden splint with a glowing red ember at its tip is shown.
4. When the splint is inserted into the jar, the glowing ember ignites into a bright yellow-orange flame.
5. The jar is a wide-mouthed glass bottle.
Answer: B
Category: Chemistry