Among the various allotropes of carbon, – McqOptions

MCQOPTIONS

1.	Among the various allotropes of carbon,
A.	diamond is the hardest, graphite is the softest
B.	coke is the hardest, graphite is the softest
C.	diamond is the hardest, lamp black is the softest
Answer» B. coke is the hardest, graphite is the softest

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