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IG Chemistry Paper 3 discussion

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mr3bood:
what about the chlorophyll question?....the first one where it says *how can you show that this green solution contains chlorophyll*?...and the second one that has 3 marks!...*expain the role of chlorophyll*?...

susman:
how was the graph on the ammonia?
inverse rigth?

X Abdulrahman X:

--- Quote from: susman on June 01, 2009, 10:37:17 pm ---how was the graph on the ammonia?
inverse rigth?

--- End quote ---

yea it starts high and decreases as u go along

X Abdulrahman X:

--- Quote from: mr3bood on June 01, 2009, 10:30:22 pm ---what about the chlorophyll question?....the first one where it says *how can you show that this green solution contains chlorophyll*?...and the second one that has 3 marks!...*expain the role of chlorophyll*?...

--- End quote ---

u add iodine it turns black, i wrote stuff like photosynthesis, and gives it its colour, and absorbs light etc, last time i read bout chlorophyll was years ago lol

shafiq_92libra:
Dudes i found chem pretty easy  :D
it wasnt awesome
bt it wasnt bad
i was expecting worse
especially after how easy 2008 papers were
for da chlorophyll i took a guess and wrote you compare da colour of chlorophyll to da colours of the constituents on da chromatography paper
if it is a match then chlorophyll is present
although i dnt expect marx for dat answer
and for da acid 1 i wrote you add a metal and hydrogen gas is given out
ok its june 2nd so i think its okay to post this ryt?
and yeah inverse
and chlorophyll is a catalyst for photosynthesis

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