I had a TLC problem on a quiz that used DCM as a solvent, the dots moved up the

Question

I had a TLC problem on a quiz that used DCM as a solvent, the dots moved up the plate with no separation (does this mean the solvent was too polar?) the problem the asked which of the given solutions would make a better separation. The solvents were 2-propanol, ethyl acetate, hexane, and acetic acid. The answer was hexane but I can't figure out why. Please help. Is hexane less polar than DCM??? I don't understand I had a TLC problem on a quiz that used DCM as a solvent, the dots moved up the plate with no separation (does this mean the solvent was too polar?) the problem the asked which of the given solutions would make a better separation. The solvents were 2-propanol, ethyl acetate, hexane, and acetic acid. The answer was hexane but I can't figure out why. Please help. Is hexane less polar than DCM??? I don't understand The solvents were 2-propanol, ethyl acetate, hexane, and acetic acid. The answer was hexane but I can't figure out why. Please help. Is hexane less polar than DCM??? I don't understand

Explanation / Answer

The polarity index of the solvents is:

Acetic acid > 2-propanol > ethyl acetate > DCM > hexane

So, hexane is less polar than DCM

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