Which of the following represents a strong oxy acid? Remember, based on our rule, we're going to say if a neutral oxy acid has two or more oxygens than hydrogens, then it is a strong acid. These out because D is not neutral, it has a charge. So we have to look at ABC and E.
When we do the math, we're going to have two oxygens here. -1 Hydrogen gives us only one oxygen left, doesn't meet the requirement here. We have two oxygens, we have 4 hydrogens. We definitely don't have any oxygens left. This one here we have one oxygen, one hydrogen. Comes out to 0. Doesn't work.
East is our answer because here we have 3 oxygens -1 hydrogen. We have the minimum requirement of two oxygens more than hydrogen, so this would be our strong oxy acid. This is bromic acid, right? So just keep in mind the rule that we talked about when it comes to oxyacid strength.
Remember our two exceptions of oxalic acid and iota acid. If you can remember that, you'll know how to identify a weak oxy acid versus a strong oxy acid.
