Qualification > Sciences
IG Chemistry Paper 3 discussion
emi:
if you dissolev chlorophyll in ethanol, doesnt its color go away ?
shafiq_92libra:
im not sure if it does lol
all i know is chlorophyll is a green pigment
and dat ethnol removes starch
i think im not even sure about that
Ukhti-R:
yeah I think it dus.... it decolourises it ....i think ..:P
emi:
no it doesn't remove the start ,, i remember in one of the tests we had to learn, one of the steps was to i dono boil or something the leaf in ethanol to dissolve the chlorophyll and it would turn it white ?
so cant that be used as a test to see if chlorophyll is there
Wahab09:
"for the indicator question..i wrote pH meter........i know it's wrong..but at least i wrote something...who knows..i might get it right anyway.......and for the Aluminium question i didnt balance it...so i think i got 1 for a non balanced equation instead of 2..."
dude.. dip a pH meter is 100% correct..!
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