A) \[A{{l}_{2}}{{O}_{3}}\]
B) \[Si{{O}_{2}}\]
C) \[SiC\]
D) \[Sn{{O}_{2}}\]
Correct Answer: C
Solution :
\[A{{l}_{2}}{{O}_{3}}\]? corundum \[Si{{O}_{2}}\]? silica \[SiC\]? carborundum \[Sn{{O}_{2}}\]? tin stone
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