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Would I lose marks for this?

Hi,

I had my AQA A-Level Chemistry paper 2 exam this week. For one question we had to draw the skeletal formula for diethyl amine, as shown in the image. Would I lose a mark for not drawing the H? I am worried about losing marks because I need an A* :frown:

Thanks a lot!
Reply 1
It depends how many marks it's worth, I imagine yes... because without the H is it still the correct formula?
Reply 2
It was worth 2 marks because there were 3 molecules you had to draw and I drew 2 of them. I cannot remember what the other one was. Also, I thought covalent bonds involving hydrogen are omitted from skeletal formulae?
You omit hydrogens that are part of a carbon chain - but not if the hydrogen is part of a functional group, e.g. NH2 or OH - otherwise it would seem that you're just writing C-N or C-O instead of C-NH2 or C-OH - which is quite different

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