Spots of pure pigment A and B and a mixture Z were placed on a filter paper and allowed to dry. The paper was then dipped in a solvent and results obtained as follows on a paper chromatogram.
![chemf1et121q15](https://www.easyelimu.com/images/form_1_past_papers/end_term_1_2021/CHEM_F1_ET1_21/chemf1et121q15.JPG)
Which is the
- Baseline
- Solvent front
- Which of the pure pigment was component of Z