Determine if the following reaction represents an oxidation or reduction reaction. If we take a look here, we're going to say that we have, as far as we can see, one carbon oxygen bond and we have one carbon hydrogen bond here. Now here, this is just a regular carbon carbon bond and this is just a regular carbon carbon bond, so we don't look at those.
Now we're focusing on this carbon because we can see that it undergoes a change here. So that's we're focusing on it. So we're going to say here we're starting out with one carbon oxygen and one carbon hydrogen. If we come over here, what's happened? Well, we can see that this carbon, which is still the same carbon here, it has lost its carbon hydrogen bond. So it has zero of those now.
And now instead of being connected to oxygen just once, it's now connected to it twice. So we have increased the number of carbon oxygen bonds, and we know when we do that, that's a sign of oxidation. So here we'd say that this reaction represents an oxidation reaction. We have an alcohol that's been oxidized into a ketone product.