Qualification > Sciences
CHEMISTRY PAPER 1 HERE
john12345:
nd one more question lol sorry
i have quite sum questions
for which metal are de use nd property correctly linked
B aluminium for food containers as it is light and resistant to corrosion
or D satinless steel for cutlery as it is cheap and strong
A and C are wrong so its between B and D
which on'e correct nid??
john12345:
Also
does anyone have the Chemisry Paper 1 for May and October 1993 since i cant seem to find dem anywhere
howcome dey are dere for physics nd biology but not for chem???
Phosu:
--- Quote from: john12345 on June 10, 2009, 04:46:40 pm ---nd one more question
which process can convert molecules to a new substance by removing hydrogen atoms
A displacement
B fermentation
C neutralisation
D oxidation
how do you solve this question
--- End quote ---
its neutralisation
and the answer to the next question which i am to lazy to quote is, B its aluminium
john12345:
--- Quote from: Phosu on June 10, 2009, 05:09:54 pm ---
--- Quote from: john12345 on June 10, 2009, 04:46:40 pm ---nd one more question
which process can convert molecules to a new substance by removing hydrogen atoms
A displacement
B fermentation
C neutralisation
D oxidation
how do you solve this question
--- End quote ---
de ,arkscheme says its oxidation
nd for de next question de markscheme says it steel???????
dats y i am confused
nd y is it neutralisation anywayz
its neutralisation
and the answer to the next question which i am to lazy to quote is, B its aluminium
--- End quote ---
nid404:
--- Quote from: john12345 on June 10, 2009, 04:46:40 pm ---nd one more question
which process can convert molecules to a new substance by removing hydrogen atoms
A displacement
B fermentation
C neutralisation
D oxidation
how do you solve this question
--- End quote ---
I find all of them except fermentation a possibility
Displacement- H2SO4+ 2 Na--> Na2SO4+H2
Neutralisation- NaOH+H2SO4-->Na2SO4+H2O
Oxidation- CH4+2O2-->CO2+2H2O
Can u post the paper it is from. i'll work on it and let u know...
and yup I'm from Bombay..MUMBAI
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