Question

A non-metal X exists in 2 different forms Y and Z. Y in the hardest natural substance, whereas Z is a good conductor of electricity. identify X,Y and Z.​

Answer 1

We know that the hardest natural substance is Diamond(Y). Since diamond is an Allotrope of Carbon, element X is Carbon. Now, carbon has two allotropes,i.e., diamond and graphite(Z).

Thus,

X - Carbon

Y - Diamond

Z- Graphite

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