Question

In a TLC experiment, why would you dissolve an unknown compound in a mixed solvent rather than a single solvent?

Answer 1

if yoy want to answer it in one word we need to change the polarity of the solvet

if you use only one solvent you cannot change the polarity

whereas if you use the mixture of solvent you can change the polarity of the mobile phase.

supposw if you run the the TLC in one pure solventit raised suppose it raised above the TLC plate you cannot observe the spot now if you want to decrease the solvent polarity you need to add the some less poar solvent to that reaction mixture so that you will get the spot observed on tlc plate

if you wnat raise the