there was negative marking for the extra 12 question but.....u see i made 41 questions wrong this mean "-41" marks but i attempted all 12 ques correctly. this means "+36"....... this mean only 5 marks were deducted from my paper......so its very important to attmpt those 12 question.......as far as i know everyone is getting different types of paper.......one of my frnds also got question from this biomolecules........

for english....i think u donot have to prepare........i got question on filling the correct form of the verb......those were very simple.......

 i think the extra 12 question were very simple ......there was not any memory based que......simple..like

" initial angula velocit=w" angular retardation=a" find the average angular velocity  for t=t1 to t=t2........those were very simple and i think evey one should attempt those if one can take risk of 15 que in the main paper......

i think there was not any section which was very tough.......there were some que on memory based which make the paper tough.......u can do them......u just have to guess themmm

no there was no que from statistics but there we que from thermo in chem......the que was simple but tricky......"ethanol is taken in a beaker at 1 atm and x A current is allowed to pass for y sec and z gm of ethanol got vapourised .... calculate enthalpy of vapourisation for ethanol......" 

 yes ravi u r correct....one should attempt those 12 que only if u have to guess abt 15 que........and if ur accuracy rate in the above que is high.....but if u have time then go for themmm