[EDEXCEL] May 2013 Examination Discussions here! [IGCSE/GCSE]

[MalloryKnox]

Probably slightly harder

[Emma11]

Hi, is it correct to say that one of the uses of UV light is that it can be used in:
-Neon signs in billboards
-Fluorescent lamps?
The question is for 2 marks.
Would I get both marks for these 2 points?

[MalloryKnox]

Hi, is it correct to say that one of the uses of UV light is that it can be used in:
-Neon signs in billboards
-Fluorescent lamps?
The question is for 2 marks.
Would I get both marks for these 2 points?

TBH I'm not totally sure. I always thought the main uses of UV light was for Sun Tans and detecting forged bank notes, but it is used in both of your answers, so, yes, you probably would get 2 marks. But don't quote me on it

[NotAbod]

Hi, is it correct to say that one of the uses of UV light is that it can be used in:
-Neon signs in billboards
-Fluorescent lamps?
The question is for 2 marks.
Would I get both marks for these 2 points?

Aren't Neon signs made of Neon? at least that's what I studied.

https://en.wikipedia.org/wiki/Ultraviolet#Applications

[MalloryKnox]

Anyone doing the Maths Unit 3 on the 17th?

[Emma11]

For the physics paper, was the graph supposed to be a bar graph or a line graph?

[parasagarwal]

Surely that was a bar graph because there we were supposed to represent colors against their voltage required/wavelength (whatever it was) you can't use a line graph with colors. You must have both units like weight against height for that. I hope you understand that

[Emma11]

Which is why I drew a bar graph But I know others who drew a line graph, so I was worried that I was wrong.

[neo]

chemistry anyone? what was the answer to the sodium hydroxide question?

[nafiz6]

chemistry anyone? what was the answer to the sodium hydroxide question?

Chemistry had a few tricky questions! >_<
I wrote the compound was sodium chloride.. apparently, its wrong.. what was the question exactly?? did they ask for the sodium compound used? i thought they asked what the compound formed was.. most of my friends wrote sodium carbonate.. it was 2marks right??

[shaazfm]

Chemistry had a few tricky questions! >_<
I wrote the compound was sodium chloride.. apparently, its wrong.. what was the question exactly?? did they ask for the sodium compound used? i thought they asked what the compound formed was.. most of my friends wrote sodium carbonate.. it was 2marks right??

i wrote sodium carbonate as well because of the fizzing,which doesnt happen when sodium hydroxide is added

[nafiz6]

can titanium be used as inert electrodes for electrolysis of H₂SO₄??

[MalloryKnox]

Mathematics B Modular Unit 3 ----- anyone do it? I soooo definitely got a D in that -_-

[slingypack]

Kindly somebody post the edexcel igcse june 2013 papers and mark schemes for all subjects.

Thanks in advance

[leesajohnson]

Anyone ask questions regarding Edexcel exams here. They can update themselves on the forum.