question no.2
please...If anyone could
Attachments:
Answers
Answered by
1
The answer is Option (4) - X203
Answered by
1
x2o3 because it is talking about oxides of Fe as clear by the percentages
SugaKookie:
is there any way to solve it...like i may not know percentage of their compositions
Without percentage , you can not solve it but you need not know the exact name of X. Here percentage of oxygen is 27.6 hence percentage of X is 72.4. the ratio of X :Oxygen=2.62 which can be rounded of to 4:3 hence formula is X3O4 (ratio is written in reverse when we write chemical formula) .Now in second compound oxygen is slightly more hence its ratio should be slightly increased not by large proportion
Similar questions