A. Lead pencils
B. Abrasive
C. Lubricant
D. Electrode of electrolytic cell
¨ Abrasive is a material used for grinding, polishing, or cleaning a surface through friction. It is typically a hard material that is able to remove material from the surface being worked on by cutting or abrading it. Examples of abrasives include sandpaper, grinding wheels, and polishing compounds.
¨ In the context of the given question, graphite is not typically used as an abrasive material, as it does not have the necessary hardness or cutting ability to effectively remove material from a surface.
Submitted by :- Jamil Ahmed