How did y find the chemistry p42

[Djoyakim]

well it was really difficult for me...

 

[jafar375]

Yeah it was difficult ........ i was really clueless about the NMR ...... anyone answered that question?

 

[zizu]

by the way 42 wan soooooooo easy!!!!!nava had an easy paper like that!!!wai wai hhahhahahha.....I thnk threshold will be above 75 for A

 

[soumayya]

i could work out the paper...but didn't hve tym to revise...what was the percentage of M:M+1 in the ques on NMR...?

 

[Djoyakim]

i have got 3 carbon .. may be if was propan 1 ol or propan 2 ol ... nothing about the past papers, i was waiting for partition coefficient, green chemistry mrna trna etc....but nothing

 

[jafar375]

yeah there were 3 carbons ....... but the thing is that there was a peak showing 7 partitions ..... that means that there was a carbon surrounded by 6 hydrogens .......

 

[Djoyakim]

what will be the treshold ????

 

[soumayya]

i got propan 2 ol...i got an H having 6 neighbouring H atoms..but the chemical shifts didn't match..

 

[mathmaster]

well yea it was 3 carbon...and there were 6 hydrogen in total...apart from oh for me...it was easy but kinda long

 

[soumayya]

......

 

[mathmaster]

wot about the transition element question? SnO2,PbO
and the first question in section b about amino acids...-COOH..How is it effected

 

[soumayya]

i got a total of 8 H atms...

 

[mathmaster]

well somayya...u may be rite...the nmr showed weird peaks and tym was runnin out..i guessed...looks like there was a c=o in tht??i dont know...wot did guys write for the sub atomic particles of namr and x ray

 

[soumayya]

for the second NMR spectrum i got CH3COCH3...for NMR,i wrote H atom and electron density cloud for X Ray...wat was ze ques for the COOh..?

 

[mathmaster]

how r interactions is effected by rcooAg formed??summthin like tht

 

[mathmaster]

arent we supposed to discuss after 24 hrs only?

 

[soumayya]

i wrote that ionic bonds can no longer form becoz the carboxylic group cannot ionise...thus tertiary structure is affected...

 

[soumayya]

yh...i guess...

 

[az18]

z paper was tooooooooooo goooooood!!!!!
neva seen such an easyyyyyyy paper!!
thnk threshold wud b above 75marks for an A

 

[Frooty]

u call that easy? :s
organic part was easy.. Q1 n Q2?? :O i messed with em
the applicaions were the only part i did'nt study. nmr n that metals shit :s