Qualification > Sciences

CHEMISTRY PAPER 1 HERE

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shaxter8:
HOW DO YOU GET 1993 TO 2002 PAPERS? CHEM P1 + MS?

girl_92:

--- Quote from: cherrip on June 10, 2009, 02:24:12 pm ---hey can anyne help me with this question please..
Its nov 07 ques 31... mark scheme says it should be B, i say its C..
can anyone tell me how?shouldnt it b C as oxygen is whats added to iron?
Thanks in advance ;D

--- End quote ---
dude it cannot be C bcoz carbon is only used to make only industrial steel n they r asking abt different types of steel which means more than one type so the answer is chromium n nickel because they r transition elements the answer is B
ppl plz correct me if im wrong

Triple_A:
maaaaan...check the periodic table! Carbon isnt in C (group 6)
beside in B(transition metals)...u have nickel and chromium..used to make stainless steel!

Priceless:

--- Quote from: shaxter8 on June 11, 2009, 07:49:33 am ---HOW DO YOU GET 1993 TO 2002 PAPERS? CHEM P1 + MS?


--- End quote ---

give me ur email.....i ll send it across......Q80BOY had given dem in nother topic ;)...thnkz Q80

john12345:

--- Quote from: nid404 on June 11, 2009, 06:56:40 am ---@john: Please check the question again cuz I feel it's incomplete.

Thanks

--- End quote ---

hey no nid the question is complete

even i though its weird but dats all de question says
de markscheme says its oxidation

i guesss it cant be neutralisation cause in dat hydrogen ions are involved not atoms nd hence it must be oxidation as atoms are involved in oxidation

also ions take part in displacement so it cant be dat

i guess??

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