IGCSE chem need help??

[AliHaider1011]

hello guyz.... i wanted to know about chromatography process... like what question can cme related to this ? and is the finding of RF value in syllabus ?? secondly what r the test related to oxidation, reduction pottasium dichromate, pottasium permanganate and their colours like green to what and purple...??? (confused) :Search: :unknown: :%)

 

[AliHaider1011]

plz reply fast....thankx guyz..

 

[Adahshan]

Yes r.f value is in the syllabus.

 

[TheCookieMonster]

what's r.f value?

 

[HorsePower]

what's r.f value?

it is the ratio between the distance moved by the solvent to the distance moved by the pigment