MCQ suck!! Omg yes!! 90's do come. When k did phy i started from 1993 and there were so many repeat in papers. But you have a site whére tgey have papers and ms.?
unfortunatley no i dont have it but like im sure u FIND it on the web because i remeber looking at one of the websites but then thy didnt have the marking schemes ...im sorry cuz i have only a hard copy of the classified questions and that too ...my teacher gave it to me
unfortunatley no i dont have it but like im sure u FIND it on the web because i remeber looking at one of the websites but then thy didnt have the marking schemes ...im sorry cuz i have only a hard copy of the classified questions and that too ...my teacher gave it to me
I know i found papers for physics too thats not the problem. The problem is finiding the answers. I never find marking schemes for them.
hey guys going to give my in like a few hours wait yea 4 hours ...so someone who already gave the exam...give me some tips on how to solve the paper ...i mean was it hard easy or u know something o help cum im nervous as wreck here
I know i found papers for physics too thats not the problem. The problem is finiding the answers. I never find marking schemes for them.
I know I know .........i feel u u can like solve a paper and discuss ur answer here .....i mean the ones ur confident in u can leave them and the rest u can search it on the web ...what say?
cuz our teacher used to solve it with us ...so there wasn't any problem hope that tip works
I know I know .........i feel u u can like solve a paper and discuss ur answer here .....i mean the ones ur confident in u can leave them and the rest u can search it on the web ...what say cuz our teacher used to solve it with us ...so there wasn't any problem hope that tip works
yes i did and dont even ask about it !!!1 it was a hectic 1) it was too long 2) where did they get questions of cations and anions from i mean like srsly whats wrong wid u guys ?!!!!! 3) the inverted thingy what was wrong with it ...i mean for me the whole thingy got empty i mean measuring cylinder and plus i read the measuring cylinder in the wrong direction and i left like a few questions as in the first question calculation and the estimated error plus the identifying the FB6 cation and anion although i had an idea it was nitrate but im so dumb i dint write it down ?!!!!!!! omg i feel like killing myself
The answer is D, but I'm unsure on how to solve it. Thankss
One possible way of going about this question is Hess' Cycle. If we use the equation for the enthalpy change of combustion of S8 S8 + 8O2 --(-2376)---> 8SO2 If we take enthalpy change of S=O bond as x....we could form an equation in x and solve it.
One possible way of going about this question is Hess' Cycle. If we use the equation for the enthalpy change of combustion of S8 S8 + 8O2 --(-2376)---> 8SO2 If we take enthalpy change of S=O bond as x....we could form an equation in x and solve it.
Hope it helps
it is the way Ink red did but the calculation is wrong. write the equation s8+8o2------> 8so2 and draw the Hess cycle with S8 to 8S just like how Ink red did. then the calculation part is 2232+[4*496]+16x=-2376 -2376-[6200]=16x x=536
So-so. Some parts were better than others. I really struggled with identification.
I messed up the calculations of both the questions. The question based on qualitative analysis went surprisingly well. Also, what was your titration reading?