Equivalent Proton question

[ashwin]

In the NMR Question, it asked: "The signal at 1.3ppm is split into a triplet. What is the number of equivalent protons bonded to the adjacent carbon atom?"

I put 0, as the protons bonded to the adjacent carbon atom are non-equivalent (different from the CH2 protons), so none are equivalent (in the same environment).
However, Mao's answer says 2. Can anyone clarify this please? (Question 2 d i).

Thanks

[vexx]

yeah adjacent carbon atom, the number of hydrogens, therefore it is a triplet caused by 2 hydrogen atoms.
its definitely 2.

[Davoo!]

I got 2. I think it's the N+1 rule?

[vexx]

I got 2. I think it's the N+1 rule?

yep that's it.

[nick5335]

yea... i got 0 as well, im 100% sure this is the answer... one of the trick Q's

[monicapham93]

yeah ive been stressing about this too... i put 0... cause they weren't equivalent.. and kinda did this whole explanation thing underlining the word EQUIVALENT.

yet most people didnt pick up on this.

am i completley off?

[Greggler]

if this is another ghey friggin vcaa trick ill be pisseeeddd

fuckn hell. dont know whether everyone's overthinking it or what. but this exam has just turned out to be the biggest bitch. I studied so much for it and if it ends up ive lost majority of my marks on stupid crap like this it'll piss me off. What'll piss me even more off is if i end up doing better for physics (which it looks like might be the case) when i did not study for physics and a absolute shitload for chem.

rawwwwwrrrrrrrrrrr

[jimmy999]

The answer is definitely 2. It's not a trick question at all. Or even so, if the protons aren't equivalent at all, then this would be too difficult of a question for year 12s to answer

[kakar0t]

Hahaha if VCAA embedded some sort of trick in this question i've lost all faith in the system IMO :/

[amimery]

 its deceiving that question
 because it previously states says
" the signal is split into a triplet"
 why would they tell you that in the first place?
is it possibly an error on vcaas part?

[kenhung123]

It most likely you are not used to the chemistry wording of it. Its saying how many hydrogens in the same chemical environment adjacent to the hydrogen under investigation causes a triplet in NMR spectrum

[chem-nerd]

It most likely you are not used to the chemistry wording of it. Its saying how many hydrogens in the same chemical environment adjacent to the hydrogen under investigation causes a triplet in NMR spectrum

^^this

[VeryCrazyEdu.]

I took the question as asking how many protons on the adjacent carbon were equivalent...as in off that carbon...how many were in the same environment lol

[Lighties]

I debated over this question and in the end put a 0 with an explanation, and squished into whatever space was left another explanation stating that if it wasn't the case, then it's 2. Except I wrote 2 at the end really small, so I'm not sure if the examiners'll be bothered reading it. =|

I'm going to hope they mark both as right though =|

[VeryCrazyEdu.]

yeah...using the n+1 rule...the question said equivalent protons on the adjacent carbon so i kinda assumed how many protons attached to that carbon are equivalent...which is 2 obvioucly because they dont split each other....kinda looking silly now because...why wouldn't they be equivalent lol *prays the answer is 2