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Author Topic: ALL OCT/NOV PAPER DISCUSSION HERE!  (Read 54371 times)

Offline ~~~~shreyapril~~~~

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Re: ALL OCT/NOV PAPER DISCUSSION HERE!
« Reply #90 on: October 28, 2009, 11:38:19 am »
i guess nitrate ka i wrote test for nitrate warm id al and NaOH for graph i forgot!!
and 40 cm3 ka ans is 7.5 rise in temp but i worte 15 only
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Offline ~~~~shreyapril~~~~

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Re: ALL OCT/NOV PAPER DISCUSSION HERE!
« Reply #91 on: October 28, 2009, 11:42:05 am »
i guess you are rite dlehddud

cause we were told to do testa nd differencite not to tell which is pure or impure
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Offline Ghost Of Highbury

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Re: ALL OCT/NOV PAPER DISCUSSION HERE!
« Reply #92 on: October 28, 2009, 11:42:56 am »
yea..its 7,5

for powedered Mg - larger temp. change..

nitrate  add NaOH and aluminum formula..pungent smell ad litmus trns blue..

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Offline **!!superexcited!!!**

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Re: ALL OCT/NOV PAPER DISCUSSION HERE!
« Reply #93 on: October 28, 2009, 11:43:09 am »
Quote from: ~~~~shreycool~~~~ on October 28, 2009, 11:38:19 am
i guess nitrate ka i wrote test for nitrate warm id al and NaOH for graph i forgot!!
and 40 cm3 ka ans is 7.5 rise in temp but i worte 15 only
Yeah i wrote same nitrate answer but i just wrote temp increases and explained why.... wat did u write for powdered Mg ?? And d source of error one i am talkin abt was for this Mg one only... :)
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Offline Ghost Of Highbury

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Re: ALL OCT/NOV PAPER DISCUSSION HERE!
« Reply #94 on: October 28, 2009, 11:43:59 am »
Quote from: priyu22 on October 28, 2009, 11:43:09 am
Yeah i wrote same nitrate answer but i just wrote temp increases and explained why.... wat did u write for powdered Mg ?? And d source of error one i am talkin abt was for this Mg one only... :)

measuring cylinder used?
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Offline **!!superexcited!!!**

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Re: ALL OCT/NOV PAPER DISCUSSION HERE!
« Reply #95 on: October 28, 2009, 11:45:51 am »
Oh so Boiling point is wrong... :( ???
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Offline ~~~~shreyapril~~~~

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Re: ALL OCT/NOV PAPER DISCUSSION HERE!
« Reply #96 on: October 28, 2009, 11:48:15 am »
as volume of is increased number of moles decrease thus the concentration also
so if double is increased concentration will be half
so the temp will be half

and the error one i wrote tha the app. is not insulated thus resulting in heat loss and error in exp
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Offline dlehddud

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Re: ALL OCT/NOV PAPER DISCUSSION HERE!
« Reply #97 on: October 28, 2009, 11:52:41 am »
oh and omg da keep clean and grease off question freaked me out.. wot did other ppl write? I said silver wouldn't be deposited or smething along the lines of dat XP
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Offline ~~~~shreyapril~~~~

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Re: ALL OCT/NOV PAPER DISCUSSION HERE!
« Reply #98 on: October 28, 2009, 11:54:08 am »
i wrote it will spoil the shape and also take part in electrolysis and affect the final product!!!


what is the rite answer????
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Offline Ghost Of Highbury

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Re: ALL OCT/NOV PAPER DISCUSSION HERE!
« Reply #99 on: October 28, 2009, 11:57:26 am »
due to grease on some parts of the spoon, silver from the electrolyte wudnt be dopisited evenly i.e on all parts of the spoon.
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Offline holychalice

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Re: ALL OCT/NOV PAPER DISCUSSION HERE!
« Reply #100 on: October 28, 2009, 12:01:44 pm »
Hw was french lissening ??
wasnt it d same level of difficulty as nov 08 ...
hw did u do guyzz
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Offline ~~~~shreyapril~~~~

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Re: ALL OCT/NOV PAPER DISCUSSION HERE!
« Reply #101 on: October 28, 2009, 12:04:17 pm »
it waaaas reaalllyyy good
atleast my friens told me!!!
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Offline Ghost Of Highbury

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Re: ALL OCT/NOV PAPER DISCUSSION HERE!
« Reply #102 on: October 28, 2009, 12:23:08 pm »
Quote from: M.@.N.B.i.R. on October 28, 2009, 12:01:44 pm
Hw was french lissening ??
wasnt it d same level of difficulty as nov 08 ...
hw did u do guyzz

was easy..specially the section 3...cant discuss anymore..!!
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Offline rafaella.rr

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Re: ALL OCT/NOV PAPER DISCUSSION HERE!
« Reply #103 on: October 28, 2009, 12:30:06 pm »
so, what did you think of maths? which were the difficult questions?
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Offline **!!superexcited!!!**

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Re: ALL OCT/NOV PAPER DISCUSSION HERE!
« Reply #104 on: October 28, 2009, 12:40:50 pm »
Quote from: rafaella.rr on October 28, 2009, 12:30:06 pm
so, what did you think of maths? which were the difficult questions?
i've personal messaged u...
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