Qualification > IGCSE/ GCSE
[EDEXCEL] May 2013 Examination Discussions here! [IGCSE/GCSE]
NotAbod:
--- Quote from: nafiz6 on May 21, 2013, 07:24:11 pm ---so, there was this question on chemistry.. they asked what type of reaction is "CaO + SiO2 --> CaSiO3"
I wrote neutralization, since its a reaction between an acid and a base/alkali. Is it correct? ???
--- End quote ---
Yes. Since metal oxides are basic and non metal oxides are acidic, this is an acid base reaction or neutralisation.
nafiz6:
Awesome! Thanks! ;D
There was another question about halogens.. they gave the colors and physical state in room temp. for chlorine, bromine and iodine, and then asked: what would the color of Astatine be compared to Iodine?
I wrote : Astatine is darker than iodine.. am I right?
NotAbod:
yes. It would have been even better if you mentioned that Astatine is black. But, I think what you wrote is fine.
nafiz6:
Great! Hope they give marks for that.. Thanks again!
I feel kind'a relieved now! ;D Not sure about some experimental questions.. bt still my exam was great!! :D
nafiz6:
Anyone gave further puremaths paper 1???
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