MCQOPTIONS
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| 1. |
Arrange the following substances in chronological order of their first synthesis in lab:1. Black gold2. Fullerene3. Graphene4. KevlarSelect correct answer from the codes given below: |
| A. | 1 2 3 4 |
| B. | 4 2 3 1 |
| C. | 2 4 3 1 |
| D. | 4 1 2 3 |
| Answer» C. 2 4 3 1 | |