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Author Topic: Chem paper 3 help!!  (Read 3509 times)

Offline godfather93

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Re: Chem paper 3 help!!
« Reply #15 on: May 28, 2009, 07:50:04 am »
oh yeah, it's also mentioned in the manufacture of sulphuric acid chapter.
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Offline Shogun

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Re: Chem paper 3 help!!
« Reply #16 on: May 28, 2009, 07:51:08 am »
OH YEA Thanks MATE tht reminded me of another test which is the test for alcohols, where u add pottasium permanganate which turns its colour from  pink to colourless. and when adding pottasium dichromate where the colour turns orange to green.
@mj  its in the contact process stuff wher h2so4 is made
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Offline godfather93

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Re: Chem paper 3 help!!
« Reply #17 on: May 28, 2009, 08:01:11 am »
ur welcome. can someone please make a list of all the different processes so that it'll be easier to revise. Thanks

contact process
frasch process
ostwald process
haber's process
production of NaOH (chlor alkali industry)
production of aluminium
production of copper
production of iron (blast furnace)
extraction of zinc from zinc blende

please add on.
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Offline Shogun

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Re: Chem paper 3 help!!
« Reply #18 on: May 28, 2009, 10:01:16 am »
extraction and production of iron and steel
extraction of zinc blende and production of zinc
habers process
contact process
frasch process
production of copper
production of aluminuinm
production of naoh (learn the uses of chlorine and hydrogen and nacl)
ostwald process(never seen it in paper3)
soaponification
hydrolysis of protein fats and carbohydrates
formation of polymerisation especially terlyne and nylon with thoer properties and uses

i think thts all
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Offline simply.me

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chemistry Paper 3 .. Help !!
« Reply #19 on: May 28, 2009, 10:08:19 am »
hey all .. !!

can any1 help me with Pastpapers .. and useful info's for chemistry paper 3 :S

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Offline godfather93

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Re: Chem paper 3 help!!
« Reply #20 on: May 28, 2009, 10:08:24 am »
moreover,

extraction of bromine from seawater
purification of water
extraction and separation of minerals from nodules
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Offline jkiam11

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Re: Chem paper 3 help!!
« Reply #21 on: May 28, 2009, 10:09:32 am »
what is the frasch and ostwald process?
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Offline Ghost Of Highbury

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Re: Chem paper 3 help!!
« Reply #22 on: May 28, 2009, 10:20:13 am »
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Offline Shogun

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Re: Chem paper 3 help!!
« Reply #23 on: May 28, 2009, 10:41:55 am »
Quote from: godfather93 on May 28, 2009, 10:08:24 am
moreover,

extraction of bromine from seawater
purification of water
extraction and separation of minerals from nodules


these u can add them for the last, cuz its truly rare to be coming on paper 3. except for purification of water.
u should aslo study electroplatig and the process of galvanising and sacraficial protection and how they all work..
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Offline dirtydevil

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Re: Chem paper 3 help!!
« Reply #24 on: May 28, 2009, 11:02:18 am »
umm i dont think dat this frasch and ostwald process is nywher in da syllabus nd we havent even taught dese processes over here so its useless..
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Offline Dramien

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Re: Chem paper 3 help!!
« Reply #25 on: May 28, 2009, 12:26:35 pm »
yea i agree to dirtydevil... theres no mention of those 2 processes in the syllabus...
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