2. Sample Papers
  3. 10th Class
  4. General Knowledge

10th Class General Knowledge Sample Paper General Knowledge Olympiad Model Test Paper-12

  • question_answer
    The luster of a metal is due to:

    A)  its high density

    B)  its high polishing

    C)  its chemical inertness

    D)  presence of free electrons

    E)  None of these

    Correct Answer: D

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