if i place C6H14 and KI in a test tube, then some metal salt (MNO3) is added...

If the M+ reacts with and oxidizes the I, What color is c6h14?

I think its purple.. but im not sure why it would be that color .. :S .. care to explain please ?

and if it doesnt react .. what color will it be.. is it colorless ? or still purple?

2 answers

Oxidizing I^- forms I2 and molecular I2 dissolved in a non-polar solvent (such as hexane) with excess I^- gives I^-3 and that ion is a purple color.
so if it doesn't react.. is it colorless? because hexane is colorless.. ?