2. Questions Bank
  3. 8th Class
  4. Science
  5. Materials : Metals and Non-metals

8th Class Science Materials : Metals and Non-metals Question Bank Metals and Non Metals Summative Objective Problems

  • question_answer
     Painting keeps away __ and __ from steel structures and prevents rusting of it

    A)  Oxides and chlorides

    B)  Air and moisture

    C)  Nitrogen and Oxygen

    D)  None

    Correct Answer: B

    Solution :

      Not Available


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