Chemistry-
General
Easy

Question

Among the following groups of oxides, the group containing oxides that cannot be reduced by carbon to give the respective metals is

  1. (a) C u subscript 2 end subscript O comma K subscript 2 end subscript O   
  2. F e subscript 2 end subscript O subscript 3 end subscript comma Z n O   
  3. (c) C a O comma K subscript 2 end subscript O   
  4. P b O comma F e subscript 3 end subscript O subscript 4 end subscript   

The correct answer is: (c) C a O comma K subscript 2 end subscript O

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