 Okay, so let's do this particular redox equation. It says, consider the reaction iron plus copper 2 goes to copper plus iron 2. Which statement is true for the reaction? And then it gives you these statements and it wants you to identify which one. So, a copper 2 plus is oxidized, b iron increases in oxidation state, c copper 2 plus is reduced, d iron is reduced, and e 2 of these choices are correct. Okay, so the first thing I want you guys to remember is that when you lose electrons you're oxidized, okay, and when you gain electrons you're reduced. Okay, so that should help you to look at some of these choices and tell well what's going on. So, the first one talks about copper 2 plus. Let's just not worry about what it says, but let's look at what's going on here. So, it's going from the oxidation state here is what? 2 plus. What's the oxidation state here? Zero. So, it'll go from 2 plus to zero must have done what? Gained electrons. Yeah, gained electrons, okay? Or got reduced. Yeah, okay. So, did it get oxidized if it got reduced? No. So, that one's definitely not correct. Okay, so did it get reduced? Yes. Yes, so that one is correct. Are we okay with that? Yeah. That's it? Okay. So, now let's look at this one. What's the oxidation state here? Zero. Zero. And what's the oxidation state here? 2 plus. Okay, so to increase in oxidation state that means to go from a smaller number to a bigger number, right? So, did that happen with iron? Did it go from a smaller number to a bigger number? Yes. Yes. So, that is correct as well. Okay. So, did it get reduced? Iron get reduced? No. No, it didn't get reduced, right? It got oxidized. Okay. So, cancel that one. Okay. So, what is the correct answer? Well, since B and C are both correct, right? Two of these choices are correct. Any questions on this one? No. Okay. Pretty straight.