Which of the following statements regarding thin layer chromatography are TRUE?
ID: 566703 • Letter: W
Question
Which of the following statements regarding thin layer chromatography are TRUE? The Rf value will change if the adsorbent material is changed. Covering the sample jar is done to saturate the atmosphere with solvent. Sample spots should be approximately 1 cm in diameter. Thin layer chromatography is an example of adsorption chromatography, and not partition chromatography. In thin layer chromatography, a polar organic compound will be attracted by the adsorbent and therefore travel not as far up the plate as a non-polar compound In thin layer chromatography, a polar organic compound will be repelled by the adsorbent and therefore travel not as far up the plate than a non-polar compound
Explanation / Answer
The statements that are true regarding thin layer chromatography are
1. The Rf value will change if the adsorbent material is changed.
2. Sample spots should be approximately 1cm in diameter.thin layer chromatography is an example of adssorption chromatography, and not partition chromatography.
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