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


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