1. What is the number of synthetic elements in periodic Table? [A] 18[B] 22[C] 24[D] 26 Show Answer Correct Answer: C  2. Buckeyballs are basically the allotropes of _________? [A] Carbon[B] Sulfur[C] Phosphorus[D] Calcium Show Answer Correct Answer: A [Carbon] 3. Which among the following allotropes of Oxygen is found in 6 phases under ..