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

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Reply 2200

razortoad

Original post by Wunderbarr

Ah Shieße I don't think I put + HCl :s-smilie:

ahh dont worry, it just said to draw the intermediates anyway! You're good!

Reply 2201

Wunderbarr

Original post by sayshay

Edexcel enjoy watching us squirm. :'( Do you think it was easier than June 2015?

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Can't really answer because I've honestly not done June 2015 :colondollar:

But I don't think this paper would have been too different, in terms of the style of questions answered (like nothing super new except [CuCl₄]^2- existing in hyper-dimensional space where it can have two different shapes at the same time in our 3 dimensions [Lol Edexcel]).

Reply 2202

razortoad

Definitely easier than last years paper!

Reply 2203

oShahpo

The bit about melting point, is it to do with the internal hydrogen bonding?

Reply 2204

Twin-v

Original post by lfcrules

or maybe it was disproprtionation??????? Cuz copper went from +2 and 0 on the left to +1 on the right

I went on to say it was 'reverse' disproportionation just to be sure

Reply 2205

Don Pedro K.

Original post by sayshay

Don please tell me that was a one marker

Posted from TSR Mobile

I believe the equation itself was. If I'm not mistaken, I remember thinking "crap I don't know this" at first, so looked at the marks and I was relieved to see it was only 1 mark? But the bit after was deffo 2 marks :smile:

Reply 2206

C0balt

I didn't put equilibrium arrow for the sunglasses so fml lol. And that cisplatin bs, then why there's geometrical isomers. The very last cation and anion thing idk either. That's about it that I got wrong/not sure. Might have lost a few marks for writing question for not making the point they want me to make but oh well. Fingers crossed for 100% UMS but not sure tbh

Reply 2207

Don Pedro K.

Original post by razortoad

ahh dont worry, it just said to draw the intermediates anyway! You're good!

Ain't no mention of HCl br0

Reply 2208

C0balt

Original post by oShahpo

The bit about melting point, is it to do with the internal hydrogen bonding?

I said 4-nitro packs better as it's more linear so stronger London forces.

Reply 2209

oShahpo

Original post by Don Pedro K.

Ain't no mention of HCl br0

HCl is for the oxidation of the alcohol group.

Reply 2210

keres

Original post by Twin-v

I went on to say it was 'reverse' disproportionation just to be sure

Omg me too! I thought I was wrong

Reply 2211

C0balt

For that synthesis we only needed reagents and intermediate, so we didn't need HCl or reflux or any other bs

Reply 2212

oShahpo

Original post by C0balt

I said 4-nitro packs better as it's more linear so stronger London forces.

The question came up in jan 2016. It's about more hydrogen bonding and internal hydrogen bonding I think, although I am not certain.

Reply 2213

Don Pedro K.

Original post by C0balt

Haha yeah me too in the same areas (except the equilibrium thing). I think I got the one about a reason for why 3 steps is better wrong (I said uses less environmentally harmful chemicals) and the one about the problem of one isomer of the drug or whatever wrong :// I know for sure that I got the MCQ about the molecular formula wrong also. But on the whole, not too bad :smile:

Reply 2214

jwanjwan

Original post by C0balt

I said 4-nitro packs better as it's more linear so stronger London forces.

I thought it was because of steric hindrance due to the lone pairs on the delta negative oxygen and nitrogen being so close together so two hydrogen bonds couldnt form per molecule

Reply 2215

GrandMasti

Original post by C0balt

For that synthesis we only needed reagents and intermediate, so we didn't need HCl or reflux or any other bs

Can you remember the main Q in section B? how many were there (like big questions, not parts lol). Like the first one was about E cell and vanadium, etc.?