Asked by Anon

The following ions contain three oxygen atoms:

A) carbonate, sulfite, and nitrite
B) sulfite, nitrate, and bromate
C) sulfate, hypochlorite, and carbonate
D) chlorate, iodate, and phosphite

I know I can eliminate A and C.
Answered by DrBob222
That's right. Nitrite(NO2-) and hypochlorite(ClO-) and sulfate [SO4]^2- don't have 3.

B is OK. Isn't D OK too?
Answered by Anon
I know, that is why I am confused choosing an answer.
Answered by DrBob222
The problem is poorly worded. If you answered correctly you would answer, carbonate, sulfite, nitrate, bromate, chlorate, iodate, and phosphite.

By merging those into answers both B and D are correct. Check to make sure there isn't a typo. That might be bromite or phosphate, chlorite, etc.
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