In which set from the following the oxidation number of oxygen is in i

1.	In which set from the following the oxidation number of oxygen is in increasing form ?
Answer» `RbO_(2)ltOF_(2)ltO_(3)ltBaO_(2)` `BaO_(2)ltRbO_(2)ltO_(3)ltOF_(2)` `BaO_(2)ltO_(3)ltOF_(2)ltRbO_(2)` `OF_(2)ltRbO_(2)ltBaO_(2)ltO_(3)` Solution :`UNDERSET((-1))underset(darr)(BaO_(2))ltunderset((-0.5))underset(darr)(RbO_(2))ltunderset(0)underset(darr)(O_(3))ltunderset((+2))underset(darr)(OF_(2))`

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