Question 2 of 10 Moving to another question will save this response 1 points Why is it important to avoid air bubbles in column chromatography? Air bubbles can give false positive spots on the TLC plate. Air bubbles block the flow of solvent from the bottom of the column. Air bubbles cause the sample to travel unevenly down the column, potentially ruining the separation. The air in the bubbles might react with the compounds being separated.