Edexcel A2 Chemistry Exams -6CH04 (14th June) and 6CH05 (22nd June) Discussion Thread

What order was the reaction based on the graph drawn:???? i got a straight diagonal line

Wouldn't the measurement be the time taken for the colour change to occur, then one of the calculations is 1/time to find the rate.

Its 3 hydroxy look at the photo

And oh my god that is right, flipping hell what happened to me lol it forms ketone of course

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Any predictions on the grade boundary for an A* in this paper?

it wasn't a secondary alcohol though, it was a primary cause it was at the end of the molecule??

I'm thinking 76/77

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It was secondary alcohol if you're talking about the MCQ polymer

The measurements we need are rate and temp. To measure rate however we need to measure concentration change over time. As its only a 1 marker rate and temp should be fine.

That's quite high I think for this paper - maybe around 74?

Hey @samb1234, hope Chem 4 was nice for you! How are you going about revising for Chem 5 now?

Yeah it wasn't too bad, hopefully won't have lost too many marks. I have pretty extensive notes for chem 5 already so probably just doing papers for it tbh and reading over my notes (although I need to prioritise some other subjects a bit more atm) so that I should be ready to go by the exam. How did yours go?

Are you guys IAL?

Wouldn't the measurement be the time taken for the colour change to occur, then one of the calculations is 1/time to find the rate.

I'm thinking (Considering there was a 5 marker and a 6 marker which I've never encountered before - Still answered it mind you!) around 74 for an A*. Although they are raising their grade boundaries so I'm thinking more like 76/77.

Multiple Choice wasn't particularly bad if I'm honest, I reckon the only one I got wrong (Stupidly) was the 3-hydroxy butanoic acid one so around 18 or 19 out of 20

I'm not, he is