Question

A non metal exits in two forms X and Y. Y is the hardest known substance whereas X is a good conductor of electricity. Identify X and Y. ​

Answer 1

Explanation:

X is graphite and Y is diamond

Answer 2

Answer: X is graphite. Y is diamond.

Explanation:

Y is the hardest known substance. We know that diamond is the hardest known substance. Hence, Y is a diamond.

Diamond is a form of carbon. So the non-metal which is talked about in the question is carbon.

Non-metals are generally bad conductors of electricity. Carbon has a form, called graphite, which is a good conductor of electricity. So, X is graphite.

Fun Fact:

Graphite is also used in pencils. The black shiny thing inside a pencil, which we normally call pencil lead, is actually graphite.