CHEMISTRY ATP QUESTION HELPPLEASE...

[Fatima18]

however,
phenolphtalein is colourless in acid and red in alkali
methyl orange is red in acid and yellow in alkali
and u should also know color about litmus ppr red in acid & blue in alkali

Thanx! .Yeah i do know that

 

[aneeq247]

No such question came today

 

[ahmadumar]

thanx! xd

methyl orange in strongly acidic solution is red...it changes color in pH 4....in strongly alkaline solution its color is yellow
phenolphthalein in acidic solution is colorless...changes color in pH 9... in strongly alkaline solution it is red........

so how did the paper go?

 

[ahmadumar]

No such question came today

yeah exactly
it was easy

 

[Nerdz]

Guys! What did you write for the pH at the end point in the graph question?
That graph looked so weird it scared me!

 

[Fatima18]

I did varient 62.Which varient did u guys write?How was it?

 

[ahmadumar]

I did varient 62.Which varient did u guys write?How was it?

so i also did the 62 variant!
it was the easy most paper i've attempted!

 

[ahmadumar]

Guys! What did you write for the pH at the end point in the graph question?
That graph looked so weird it scared me!

man it was 7

 

[afoo17128]

When Oct/Nov 2012 CIE papers will be uploaded.....