Question

What do you call the black substance present in pencils? Is it metal or nonmetal

Answer 1

Answer:

it's graphite and it is a non metal

Answer 2

Answer:

the black substance is an mixture of graphite and clay (together called as pencil lead).

Now graphite is made up of carbon, hence it is nonmetal.

But, clay mainly contain hydrous aluminium phyllosilicates, may contain iron, magnesium, etc.

So it contain both metal and non metals.

Hope you will be able to understand.