Qualification > Sciences
IG Chemistry Paper 3 discussion
~M.J~:
I just can't understand why the CIE nutshells wrote "to show the -COOH"
y not just "to show that they r week acids"
....:
lol..maybe thts a way to make sure the candidate even knows that -COOH is for a carboxylic acid..
well..what did you write for this acid test?
thukon:
For the COOH thingy, i wrote add and alcohol and an ester should form :-\ Its a long shot i know, but at least its a test to show that they have the COOH group and not just to show that they are acids.
aquarian93:
which question was "to show a test to distinguish b/w the two?"
one had a double bond so i did add Bromine, and it would decoulirise unlike the other, forgot which question it was.
and guys, how much is the boundary for an A? does anyone noe?
thukon:
--- Quote from: aquarian93 on June 03, 2009, 03:48:18 am ---which question was "to show a test to distinguish b/w the two?"
one had a double bond so i did add Bromine, and it would decoulirise unlike the other, forgot which question it was.
and guys, how much is the boundary for an A? does anyone noe?
--- End quote ---
I wrote the same thing. Shake with bromine water.
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