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Which f the following compounds behave only as a hydrogen bond acceptor molecule?CH3OHHCF3Vii...

Question

Which f the following compounds behave only as a hydrogen bond acceptor molecule?CH3OHHCF3Vii

Which f the following compounds behave only as a hydrogen bond acceptor molecule? CH3 OH HCF3 Vii



Answers

Which of the following compounds show hydrogen bonding? (a) $[\mathrm{H}-\mathrm{F}-\mathrm{F}]^{+}$ (b) $\mathrm{CH}_{3} \mathrm{CN}$ (c) $\mathrm{HO}-\mathrm{OH}$ (d) $\mathrm{CH}_{3}-\mathrm{O}-\mathrm{CH}_{3}$

So the ones that would exhibit hydrogen bonding are going to be Choice B, choice C. And the reason is that H. Has to be directly connected to nitrogen, oxygen or flooring. If it's not directly connected, then there's no hydrogen bonding. So for instance the LewiS structure for part A. You have the hydrogen connected to carbon, which is the central atom and then flooring is also connected to carbon. So there's no direct H. F. Connection. That's why there's no uh hydrogen bonding. But in H. 202 which is hydrogen peroxide, you can see that the H. Is bonded to the oh um and then there's going to be lone pairs here. So that's why uh that creates an electro negativity difference that allows for hydrogen bonding between the molecules. Uh Same thing for NH three F. Um Go so you have a direct and H connection. Um And then for part D. That it's going to be CH. Three. So the Hs are connected to carbon and then they're not connected to the oxygen. Only the carbons are bonded directly to the oxygen. Um So there's no significant electro negativity difference between H. And a very electro negative element in that case.

This compound, which I am drawing here this car pound on compounds carbon I'll oxygen. This is carbon I lock season. These compounds garble Nile off season can again form, can form the strongest, can form a strongest hydrogen bond hydrogen bond with with as to molecule With S two molecule as compared with the other atoms. So so option A so option A each correct answer.

When we need to determine whether there are polar bonds or ionic bonds present within a molecule, we need to consider the placement off the element on the periodic table, then where they said relative to other elements in the same compound. So we need to remember our trends. And that is as we could go from left to right and bottom to top of the table. The electro negativity increases. So if we were to look an element head, that was, that was to the right top of the table brass is an element over here that was on the left of the table. This would be an ionic bond because we're bonding a very Electra negative Factum which over here on the right of the table, with a not very Electra negative act, um, over here on the left of the table.

The goal of this question is to say which of these compounds form a hydrogen bomb. So generally, hydrogen bond is when the hydrogen bonds to enough in o or and remember that is a play on the word fun, fond hydrogen cell phone. So starting with the 1st 1 we have water H 20 So Oh, here, Anderson. We have two beaches on either side. Ano isn't in fun. So you have It's hydrogen bond happening here, this one happening here so that one checks up next one. We have each to go to very similar to last one. That except for now we have to oxygen in those two accidents. He checked their own hydrogen by name to them to make sure orbital's were full. Once again, we have to hydrogen bonds here here, checks out, living into the next one. We have a hydrogen bonded to for you. Florian was only missing one electron. So I don't need someone, Bond. And after the lie in fun, we have one hydrogen bond have been here, and finally, your last one and aged three pen is also in one. So 11 checks out, Um and then we have three. Hydrogen is buying years. One, two, three hydrogen bonds checks on all four of these include hydrogen bond


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