In chromatography, what does it indicate if a sample produces more than one spot on a chromatogram?

A high-scoring answer should explain compare spots from unknown substances with known substances on the same chromatogram. Use evidence before identification: name the relevant test or measurement, state the observation, and then connect the result to Chromatography.

The important distinction is that chromatography must be identified from spot and solvent-front distances; answers that swap in a different test or result do not match Chromatography. A complete answer should use the approved objective wording, include the relevant evidence, and avoid unsupported identification claims.