MCQOPTIONS
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MCQOPTIONS
| 1. |
Among the various allotrope of carbon |
| A. | Coke is the hardest, graphite is the softest |
| B. | Diamond is the hardest, coke is the softest |
| C. | Diamond is the hardest, graphite is the softest |
| D. | Diamond is the hardest, lamp black is the softest |
| Answer» C. Diamond is the hardest, graphite is the softest | |