From the following compounds which two has oxidation number +1 and 0.5 of oxygen ? O_(2)F_(2),H_(2)O,H_(2)O_(2),CsO_(2)

From the following compounds which two has oxidation number +1 and 0.5

1.	From the following compounds which two has oxidation number +1 and 0.5 of oxygen ? O_(2)F_(2),H_(2)O,H_(2)O_(2),CsO_(2)
Answer» `H_(2)O,CsO_(2)` `O_(2)F_(2),CsO_(2)` `H_(2)O_(2),H_(2)O` `H_(2)O_(2),CsO_(2)` ANSWER :B