270. From the substances listed below, select reagents for the detection of the following ions:
1. Mn2 A. potassium iodide
2. Bi3 V. alizarin
3. Al3 C. sodium bismuthate in concentrated nitric acid
4. Fe3 D. sodium chloride
5. CO2 E. 1-nitroso-2-naphthol
6. AsO43– F. sulfosalicylic acid
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