Ques. What should be the percentage of iron and dioxygen in a Fe₂O₃ molecule ?

(A) Fe- 69.9% and O₂ - 30.1%
(B) Fe- 50% and O₂ - 50%
(C) Fe- 57.7% and O₂ - 42.3%
(D) Fe- 34% and O₂ - 66%

Dear Student,

Please find below the solution of your asked query:

Molecular mass of Fe₂O₃ = 56 * 2 + 16 * 3 = 160

  Mass of Iron = 112

  % of Fe =  Mass of Fe/Total mass * 100

               = 70%

And the rest of the amount present is dioxygen i.e. 100 - 70 = 30%

Therefore, option (A) is correct.

Hope this information clears your doubts about the topic.

Keep asking!!

Regards