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GCSE SCIENCE A AQA CHEMISTRY C1 EXAM ON 10th JUNE 2014

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Reply 20

Rubato

Original post by samiln

I think there could be a 6 mark question on wegeners theory

What could we possibly write for six marks?

Reply 21

belilo

Original post by manishah2

CAN YOU Please give recommendations what the 6 marker might be about and what do i need to revise for the exam if you have read specification. thanks. i havent yet startd the revision for this.

look at your mocks and see which ones came out most recently. they probably wont come out again

Reply 22

pezisland37

what exactly do we need for the exam then?

Reply 23

manishah2

can someone help me answer this question please?
describe and explain how petrol is seperated from the mixture of hydrocarbons in crude oil? (6 marks)

Reply 24

Ezexamsalltheway

Crude oil is separated into different fraction during fractional distillation. The crude oil mixture is heated and vaporized and fed into the bottom of the fractionating column. The column is a tower that has lower temperatures going further up the tower. The different fractions rise up the column until it reaches its corresponding boiling point where it then condensates. Petrol has a relatively low boiling point so it is collected near the top of the column. Hope this help and good luck!!!

Reply 25

SFarooq

Original post by Manexopi

What could we possibly write for six marks?

Erm... what it involved, why it was not accepted at that time. I don't know what else. :/

Reply 26

yeslordsugar

Do we need to know uses of quicklime - if so what are they!?

Reply 27

ruigheruoghoer

No, in the AQA spec it says we do not need to know that

THANKS!!!

Original post by QueenOfStalling

https://www.dropbox.com/s/b2daxahtugess4d/Modular%20Jan%2014%20Unit%201.pdf

https://www.dropbox.com/s/z2k5u74p4j2gvz1/Modular%20Jan%2014%20Unit%201%20MS.pdf

JAN 2014 PAPER C1

THANKS

Reply 30

MeganC1384

well that was horrible. What gas did you get for the one that didnt condense?

Reply 31

Ezexamsalltheway

Original post by MeganC1384

well that was horrible. What gas did you get for the one that didnt condense?

I put neon :P

Reply 32

CaitlinN15

Oh dear.. Well that was.. 'challenging' :frown:

I didn't expect the 5/6marker to be on that I was well annoyed! Ffs

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Reply 33

MeganC1384

Original post by Ezexamsalltheway

I put neon :P

Ah good so did I (complete guess though!). I hated that exam honestly, the question about why the mean mass was lower than 2.2 was horrific and I found it difficult to identify disadvantages for the 6 marker, although for advantages I just used the table to talk about the environment.

Reply 34

carpe.noctem

i mean it was ok , i new the topics but unsure on some stuff but was quite hard. i made a lot of silly mistakes though

Reply 35

carpe.noctem

Original post by MeganC1384

well that was horrible. What gas did you get for the one that didnt condense?

i wrote argon , why did you do neon ?

Reply 36

carpe.noctem

ugggggggh now for physics

Reply 37

GenuineHpLaptop

What a horrible paper. It wasnt much theory at all. It was just a whole load of data questions like the limestone one and vegio cooking oils one. Like how were we suppossed to know that? :frown:

Reply 38

QueenOfStalling

It wasn't hard and it wasn't easy... I knew what I was doing (kinda)... It was harder than Biology though

The why was it less that 2.2g was difficult :frown:

and I could draw butene because I put 2 carbon carbon bonds instead of one (idiot move) and could only put 6 hydrogens... Damn

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Reply 39