Prelim Redox Reaction question help (1 Viewer)

[fx82au]

can someone help me with Q7b.

for Qb:
Im just stuck with whether oxygen is oxidising or reducing. or is it neither? im leaning towards neither as i think the left side will cancel out, therefore oxygen on both sides will have an oxidation number of 0


thanks

 

[fx82au]

ill just keep this here for future reference:

I accidentally made Iodine's oxidation number negative, when it should be positive. I just mixed up one of the rules: 'the most electronegative element is assigned the negative oxidation number'

 

[someth1ng]

ill just keep this here for future reference:

I accidentally made Iodine's oxidation number negative, when it should be positive. I just mixed up one of the rules: 'the most electronegative element is assigned the negative oxidation number'

A good general rule is that oxygen is almost always -2 unless it's bonded to fluorine (extremely rare).