The Student Room Group

Edexcel Chemistry Unit 1 - 2015 (6CH01) Unofficial Mark Scheme

So for the multiple choice questions I got:

E/Z 1) C
Naming organic compounds 2) C
Lithium oxide 3a) D
Lithium oxide 3a) C
MgCl2 4a) B
Ionic Equation 4b) C
Vol of solution 4c) A
Bond Enthalpy 5) A
Bromine Water+Alkene 6) C
7) C
11) D
12) D
13) C
14) A
15) D
16) B
17) C
18) B
19) A
20) A

Section B:
21a The gaseous sample is bombarded with high energy electrons which knock electrons off of the atoms, creating ions with a positive charge

21aii Magnetic field causes deflection

21b The BROMINE one ew

21bii 80.1

There was another question here - can't remember it.

21c Test against a clean, controlled sample; and take into account that the athlete may have a prescription for it (that's wrong, I know)

21cii The athlete could face a ban from competing.

21ciii Use in forensics to identify the composition of an unknown compound


22a isotopes have the same number of protons, but a different number of neutrons

22aii structural isomers have the same molecular formula but a different arrangement of atoms in space

22b ∆_/ and ∆< (well, similar to that)

22c CnH2n

22c UV Light

22c CH2CH2+Br2 ----> CH2BrCH2Br

22c Cl---Cl -----> Cl. + Cl.

22c C4H8 + Cl. ----> C4H7. + HCl
C4H7. + Cl2 -----> C4H7

22d
Error 1: Partial charges are the wrong way around
Error 2: The arrow should go from the double bond to Chlorine, not the other way around
Error 3: The Chlorine in step 2 should have a lone par/negative charge to make it a Chloride

22e

22f? Tertiary carbocation (where there are three alkyl groups bonded to the charged carbon) is the most stable configuration

23a Cl---Cl and a kind of figure eight around it

23b Electrolysis equipment set up

23c

I really can't remember the rest, so please contribute! And also, can someone let me know the order of the MCQs, as there were some that weren't multipart questions.
(edited 8 years ago)

Scroll to see replies

Original post by MoHoosen9167
So for the multiple choice questions I got:

1) C
2) C
3) D
4) C
5) B
6) C
7) A
8) A
9) C
10) C
11) D
12) D
13) C
14) A
15) D
16) B
17) C
18) B
19) A
20) A

I really can't remember the rest, so please contribute! And also, can someone let me know the order of the MCQs, as there were some that weren't multipart questions.


wow you must have a really good memory - I don't even remember what I got for the first multiple choice...
Original post by happysmile
wow you must have a really good memory - I don't even remember what I got for the first multiple choice...


Graphics Calculator, my friend :wink:
Original post by MoHoosen9167
Graphics Calculator, my friend :wink:


you should have basked in the glory :wink:
Original post by MoHoosen9167
x


Aw why'd you get C for Q2? :frown:
Original post by Nautic4l
Aw why'd you get C for Q2? :frown:


What was it - I can't remember?
Original post by Nautic4l
Aw why'd you get C for Q2? :frown:


Oh wait, I do remember. It's because it was 2,4-dimethylhexane
Original post by MoHoosen9167
Oh wait, I do remember. It's because it was 2,4-dimethylhexane


Noo :frown: I put the ethyl thing

And I got different for the last one, got C
Original post by Nautic4l
Noo :frown: I put the ethyl thing

And I got different for the last one, got C


What was the last question?
Reply 9
Avatar for BBeyond
BBeyond
15
was it not 2-ethyl-4methyl???

edit: **** wow how did i get that wrong lmao
Original post by BBeyond
was it not 2-ethyl-4methyl???

edit: **** wow how did i get that wrong lmao


I did that :frown: why is it wrong
Original post by MoHoosen9167
What was the last question?


The most polarized anion i think?

Also add what the questions were next your answers! for MC
Original post by Nautic4l
I did that :frown: why is it wrong


Original post by Nautic4l
The most polarized anion i think?

Also add what the questions were next your answers! for MC


Fairly sure that was Q16 and it was B, MgO
Original post by BBeyond
was it not 2-ethyl-4methyl???

edit: **** wow how did i get that wrong lmao


I'm pretty sure it what you said. There was no way it was 2 methyls.

Edit: Oh **** I realized my mistake.
Original post by Nautic4l
The most polarized anion i think?

Also add what the questions were next your answers! for MC


I can't remember the questions; if people would like to help me :wink:
Original post by MoHoosen9167


Oh... yeah you're right haha

And yeah Q16, the last MC I meant :tongue:
Original post by MoHoosen9167
I can't remember the questions; if people would like to help me :wink:


Noo I just mean as it is. So Q1 was E/Z, Q2 was naming the thingy etc :tongue:
Original post by Nautic4l
Noo I just mean as it is. So Q1 was E/Z, Q2 was naming the thingy etc :tongue:


I had exactly that for the first two, and couldn't remember what the third was fml
was it -795 for the born haber? if yes think I got 19/20 ,meh

Quick Reply

Related discussions

Latest

Trending

Trending

Articles for you