Chemistry-
General
Easy

Question

Corundum is

  1. (a) S r O subscript 2 end subscript   
  2. A l subscript 2 end subscript O subscript 3 end subscript   
  3. (c) C a C l subscript 2 end subscript  
  4. C u subscript 2 end subscript C l subscript 2 end subscript   

The correct answer is: (a) S r O subscript 2 end subscript

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