Which would be the easiest way to burn an iron nail?
(A)Hold an iron nail with crucible tongs, and heat strongly in the flame of a Bunsen burner. (B)Use the method in (A), but use an oxyacetylene torch to reach a higher temperature. (C)Grind the nail into very small, dust-sized particles, and spray them into a flame (D)Dissolve the nail in acid to make the oxide.
C