00:02
A, chlorate ion.
00:15
Let's say that oxidation state of chlorine is x.
00:21
Oxygen has oxidation state minus two, and there are three of them.
00:30
And the overall sum must equal the charge of the ion.
00:35
It's minus one.
00:38
When we saw this equation with respect to x, it will give us five.
00:49
The oxidation state of chlorine is five.
00:56
B, hydro -iodic acid.
01:03
Oxidation state of hydrogen is plus 1.
01:08
Iodine is x, and the overall charge is 0.
01:16
So, x equals minus 1.
01:19
So the oxidation state of iodine is minus 1.
01:28
C.
01:31
Iodine trichloride...