2. Questions Bank
  3. 9th Class
  4. Science
  5. Atoms and Molecules

9th Class Science Atoms and Molecules Question Bank Self Test-2

  • question_answer
    Calculate the percentage of Fe in \[F{{e}_{2}}\,{{(C{{O}_{3}})}_{2}}\].

    A) (a) 48.28%

    B) (b) 51.72%

    C) (c) 28.06%

    D) (d) 21.06%

    E) (e) None of these

    Correct Answer: A

    Solution :

    (a)


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