DIAMOND IS THE HARDEST SUBSTANCE KNOWN, WHEREAS G...

Question

351.   Diamond   is   the   hardest   substance   known,   whereas   graphite,   another   carbon   allotrope, is...  .    A) the softest one of  B) softest of the one  C) the one of the softest  D) one of the softest

Answer

351.   Diamond   is   the   hardest   substance   known,   whereas   graphite,   another   carbon   allotrope, is...  .    A) the softest one of  B) softest of the one  C) the one of the softest  D) one of the softest

DIAMOND IS THE HARDEST SUBSTANCE KNOWN, WHEREAS G...

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