OCR A2 CHEMISTRY F324 and F325- 14th and 22nd June 2016- OFFICIAL THREAD

Sorry. His logic is just so flawed.

That's what I did

It's the question where they added dilute HCl to a diamide (I think). People were discussing whether the NH would turn to NH2, NH3 or NH3+ or NH3+Cl-. I think the later 2 will be accepted.

What were the conditions for making the amine from halogenoalkane ? ethanolic ammonia, and I said distillation?

lol, if any of you had acc read the question you would have seen it said theyre all natural fats, trans unsatuated fats are produced unnaturally therefore it has to be the saturated fat... if you went for one of the unsaturated fats it would be cis and therefore good for you.

Where in our textbook does it talk about fatty acids breaking down into fats? Thought this was a chemistry exam not a biology exam

P.S you used the wrong 'too' (*to) in your original post.

Some trans fats are made naturally. Literally type 'are trans fats naturally occurring' into google and you'll find that some are.

question about stitches: is it asking about hydrolysis of photodegradable. or you need both to score 3.

Literally created this account just to say you are chatting a load of shiiiteee (and its annoying me) : its is saturated fatty acids that help cause LDL (as well as transunsaturated fats) - a saturated fat is a saturated fat because it contains saturated fatty acids - glycerol never changes in triglycerides so no idea where you got this saturated fat bad but saturated fatty acid completely fine and dandy idea from; maybe next time don't just think that a biological fact isn't true just because the CHEMISTRY textbook doesn't literally phrase it in the exact way you want.

On past mark schemes I've seen it says 'ALLOW polypeptide' so I would think it will be the same for this year

In the one where you had to draw ethanoic anhydride and another product, was the other product ethanoic acid?

For the first question it was the THIRD fatty acid. The question asked which is 'most LIKELY' to cause heart disease. The third fatty acid is most LIKELY to have at least one trans bond, and therefore most likely to be a trans fatty acid. It is TRANS FATTY ACIDS that act like SATURATED FATS. Key point to note here is there is a difference between TRANS FATS and TRANS FATTY ACIDS.

Some trans fats are made naturally. Literally type 'are trans fats naturally occurring' into google and you'll find that some are.

mate saturated fatty acids caused increased ldl production, you're wrong just accept and stop being a berkshire hunt with your arrogant insistence

So do trans fatty acids? why are you in denial? trans fatty acids increase LDL and it is likely that the third will have a trans bond that's all I am saying.