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OCR Chemistry F322~ 4th June 2013~ AS Chemistry

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Reply 2740

Gingerstudent999

Original post by Dan_JR_12

Yeah I put N for the one which is extremely unreactive :smile:

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What did you get for the next one?

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Reply 2741

WorthaGo

Original post by Gingerstudent999

What did people get for the multiple choice halogenoalkane one, for the first on I got N

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For the extremely unreactive one I put whatever was the first one. The CFC

Reply 2742

TheSnail

Original post by SamuelJ

Conditions of fermentation?
I put presence of yeast and 37°C but I'm not sure whether the first one is a 'condition' and the second one is absolutely necessary - just an optimum?

anaerobic conditions (no oxygen) and yeast :smile:

Reply 2743

Kvothe the Arcane

Original post by g.k.galloway

I got that :smile:

It was a ketone and aldehyde :biggrin:

Yay. I wasn't sure about the yellow flame/black smoke question

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Reply 2744

TheSnail

Original post by reubenkinara

Yay. I wasn't sure about the yellow flame/black smoke question

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i put incomplete combustion...

Reply 2745

futuredentist95

What did everyone get for the flowchart?The alcohol was C7H13OH I think.. I got an ester and ketone? Not sure about the acid part.. I knew it was dehydration

Reply 2746

FLLF

Were the functional groups alkene and ester?

Reply 2747

Dan_JR_12

Original post by Gingerstudent999

What did you get for the next one?

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S

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Reply 2748

Room4student

Original post by Gingerstudent999

What did people get for the multiple choice halogenoalkane one, for the first on I got N

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I got N then S a also picked CH3CH2CHClCH3 and reacted for when i reacted but-2-ene with HCl anyone else did that?

Reply 2749

Stacie0395

Original post by massi1296

okay thanks did you have to put the + on them i got s8 and s4 think it was s4+ though

Most of the time you need the charge

Reply 2750

Kvothe the Arcane

Original post by g.k.galloway

anaerobic conditions (no oxygen) and yeast :smile:

I put O2 and 37 º lol- silly answer :frown:

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Reply 2751

Nas.

I didn't do good at all, feeling a bit gutted right now. :confused:

What's the lowest grade needed to retake the exam, and how much will this exam affect ucas/uni applications?

Reply 2752

TheSnail

Original post by adamsharif95

What did everyone get for the flowchart?The alcohol was C7H13OH I think.. I got an ester and ketone? Not sure about the acid part.. I knew it was dehydration