Chemistry Paper 12 Discussion Thread

[Edifier]

So how was the paper guys? Did you find it hard? I found it as a okay-ish kind of paper.

 

[cieko..]

me tooo..
but got confused in last 10 questions

 

[MHR]

It wasn't too hard a paper----but then, it wasn't too easy either....well, that's the last of chem anyway, right?

 

[ahmed t]

hey for the last question what was the first option?
was it a tertiary or a primary?

 

[soumayya]

it was tertiary...

 

[skyfox]

the answer is C right ? because the question is asking NOT SN 1 reaction.

 

[ahmed t]

actualy its D
SN1 is for the tertiary amd the graph has two humps wich means its an SN1
UNLESS they asked what reaction would not follow that corse

 

[skyfox]

yes you're right the tertiary will be the SN 1 reaction. and the first option is the tertiary one. however. the question was asking about NOT the SN 1 reaction. if Option 1 is false so the answer is C.

 

[ahmed t]

are you sure?
cause what i remember is What reaction undergo's this chemical pathway?
and what about the skelatal diagram?

 

[skyfox]

im quite sure. I remember the question is asking about not the SN 1 reaction..
The skletal one is C. the one that is the shortest.

 

[ahmed t]

hey wat did u get for the acid question in part B about the 2mins and 20 mins?

 

[skyfox]

i already forgot the question.. lol. give the option please.

 

[ahmed t]

i forgot the options as well
wat about the pressure i got 8 atm

 

[MHR]

i forgot the options as well
wat about the pressure i got 8 atm

Same here. I hope we're right.

 

[Zishi]

I've already got the Chemistry Oct/Nov 2010 paper 12 - If anyone wants me to post it, then I can surely post it over here... :shock:

 

[colloquial]

that would be great!!!

 

[Zishi]

These are the pics of the Original Paper - Zoom them if you can't read the questions properly. That's what I can only do! I'll try to scan them later...

 

[colloquial]

hey zishi why the answer for question 37 is D. Shouldn't it be A?? Because the organic compound has functional groups of both an alkene and a carbonyl group(aldehyde).. Hence, it will also react with fehling's reagent and dichromate to become a COOH!
What are your views on this?

 

[ahmed t]

yea it is A
btw what about question 2
and the question about pie bonds and sigma

 

[ahmed t]

and the catalytic converter, i got D
and for pi one i got C
and for q2 i got B
and last question is D for sure