Choline has the following structure. Do you think that this substance reacts with aqueous hydrochloric acid? If so, what is the product? If not, why not?

Question

Chemical structure of choline, showing hydroxyl and quaternary ammonium groups.

Accepted Answer

Hi, everyone. Welcome back. Our next question says, consider the structure of 11 dimethyl pyridine, one em shown below. Will this compound react with aqueous H pr if so identify the product? Well, let's look at the molecule we're given, we have this pyridine ring which has 1234 carbons and a nitrogen. So it makes a pentagon shape and our nitrogen also has two methyl groups on it. So our nitrogen has four bonds, it has bonds to four different carbons and it has a positive charge. That means it has no lone pair. When nitrogen compounds react with a strong acid like hydrogen bromide, it would not be in the form of an ammonium land, it would be in the form of an amine. And I've drawn a little sample reaction where I have a nitrogen with a methyl group and two hydrogens reacting with hydrogen bromide. But in this case, you have a lone pair on the nitrogen that can bond with the hydrogen on my acid. And it will make an ammonium ion where the nitrogen has four bonds and a positive charge. But again, an r example, we already have an ammonium ion. So since this nitrogen has no lone pair, there will be no reaction with aqueous hydrogen bromide. So that's already happened. We already have an ammonia. Maya. Our answer is that there, it will not react with aqueous hydrogen bromide. See you in the next video.

Choline has the following structure. Do you think that this substance reacts with aqueous hydrochloric acid? If so, what is the product? If not, why not?

Verified video answer for a similar problem:

Key Concepts

Choline Structure and Properties

Acid-Base Reactions

Reaction Products