A non-metal X exists in two different forms Y and Z. Y is the hardest – InterviewSolution

1.	A non-metal X exists in two different forms Y and Z. Y is the hardest natural substance, where as Z is a good conductor of electricity. Identify X, Y and, Z.
Answer» X is carbon (non-metal). X exists in the form of allotropes, Y is diamond and Z is Graphite.

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