Question

$HCl$ can be used to remove rust from iron.

• A. True
• B. False

Answer 1

The correct option is A True

If you want to clean the iron surface, you can indeed use an acid but it is important to use a corrosion inhibitor, so that only the oxide is removed but the metal is never attacked. You can use HCl with hexamethylenetetramine previously dissolved inside.