1.

Name the following : (a) The hardest naturally occurring substance. (b) A greyish black non-metal that is a good conductor of electricity. (c) The third crystalline form of carbon.

Answer»

Name the following :

(a) The hardest naturally occurring substance.

(b) A greyish black non-metal that is a good conductor of electricity.

(c) The third crystalline form of carbon.



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