A2 chemistry

I can’t see the molecule but for quaternary amines you first identify the longest chain this goes before amine in the name.

So if the longest chain is 4 you have butanaminium (ammonium as it is a a quaternary salt if it was tertiary it would be an amine)

Then for the groups attached to the nitrogen you put N before them like you would normally but a number before them so if 3 methyl groups N,N,N-trimethylbutan-1-aminium

At A-level I’ve only ever really seen tertiary amine so theres not really any reason to panic too much about this

You might wanna check this with your teacher

ive attached the question below for a better idea of what i meant to ask

Help!!!!! How am I naming this molecule eg I know queatetnary amine structure but I don’t understand how this is named could someone explain