Discuss Chem P42 !!

[ds29]

I think it's one of the toughest Chem paper 4 I have ever done!
The 1st Organic question required to think but the 2nd Organic question was a bit easy.
Applications, I think I got part of the Lead Acid battery wrong, and I hope my reasoning for the Enviromental part is ok.
The other parts of Biochem were ok.
and I messed up the mass spectroscopy question! around 5 marks there
Inshallah I'll get a mark higher than the threshold but hoping that the threshold comes down!

How was your paper?

Getting ready to go for Accounts P42 now :S

 

[aasim]

da paper was crap... it was hell!!!!!

 

[atoofa]

yes it was realy tough!!! i seriously hope da treshold comes down or else i m in trouble...

 

[Farhana]

hi can u tell which questions came in the exam ?

 

[pheonix90]

sorry farhana cant tell u the paper, its out of policy to tell till 24 hours are over
and any 1 who tells ip will be banned ! so sorry !

 

[pheonix90]

paper was difficult had similar case as ds29, but got the molecular formula !

 

[ark4k3]

The worst paper ever!!!!
HELL it was way too diffficult!!!
defiinatly the THRESHOLD will be very low

 

[shooter]

Damn this paper was HARD! What did you write in the molecular formula and structure 1?

 

[sharjeel akhtar]

d paper waz v.v.v.v difficult,i messed up wid organic,fragments,electrode potentials.
i thnk percentile will b close to 55!!!!!!!!

 

[ark4k3]

molecular formula Si3Cl8O2...rite?

 

[Buffer Solution]

molecular formula Si3Cl8O2...rite?

Yep i got that too

 

[atoofa]

yeah it waz Si3Cl8O2

 

[Kaer123]

I wanted to ask the values of the enthalphy of solutions were they negative?

 

[gerrard]

yes it was si3cl8o2

 

[ark4k3]

how was the dipole table to be ticked?

 

[darkism]

huh....man threshhold should be less then 50...i got the molecular formula tooo but errrm tym was less was unable to complete the paper...

 

[Kaer123]

wat were the values of enthalpies of soln plz reply? One of them had a dipole the others didnot

 

[ark4k3]

+3kjmol-1
and
-47kjmol-1

 

[Sandy]

thank god i got the enthalpies right.
didn't have time to the NMR question! WTH?! >.<

 

[ammadb]

i got them other way..
-3. and 47.. ...
NMR que whch??

and wat abt the benzene planar shape n bond length??