CH-651
Rusting
Chemistry · Secondary 3 · Hard · Rusting
An iron gate is left outdoors, exposed to rain and air. A house owner suggests the following to reduce rusting.
Which method will be MOST effective in preventing the iron from rusting?
Which method will be MOST effective in preventing the iron from rusting?
- Painting the gate with several layers of paint
- Washing the gate with water every evening
- Brushing off rust with sandpaper every week
- Placing the gate under a roof but leaving it unpainted
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