A) \[SiC\]
B) \[AlC{{l}_{3}}\]
C) \[A{{l}_{2}}{{(S{{O}_{4}})}_{3}}\]
D) \[A{{l}_{2}}{{O}_{3}}.2{{H}_{2}}O\]
Correct Answer: A
Solution :
Silicon combines with carbon at 2500 K forming Silicon carbide\[(SiC)\]which known as carborundum. It is an extremely hard substance.
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