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All these can be used as raw materials for the production of oxygen except

  • A

    coke

  • B

    carbon(II)oxide

  • C

    steam

  • D

    nitrogen

nitrogen Is the correct option, Check your your study materials for clarification. In responding to the question with the right answer : All these can be used as raw materials for the production of oxygen except(looking at your study materia, the answer is) nitrogen