Among the various allogropes of carbon
1 Diamond is the hardest, lamp black is the softest
2 Diamond is the hardest, coke is the softest
3 Coke is the hardest, graphite is the softest
4 Diamond is the hardest, graphite is the softest
Answer / guest
(4) Diamond is the hardest, graphite is the softest
| Is This Answer Correct ? | 3 Yes | 0 No |
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