Question

Roma left some tomato pulp in iron container and forget about it after a few days she found that the containers had developed a lot of dark spots explain what could have happened

Answer 1

generally ,tomatoes contain some amount of citric acid in them due the presence of this acid pulp of tomato reacts with iron and in the formation of iron oxide that is rust due to oxidation of iron due to acid . hence, the container might have developed a lot of dark spots.