Scientists test a solution of compound X.
Table 1 shows their results.
Table 1
Test | Result |
Add dilute nitric acid followed by silver nitrate solution | White precipitate |
Add sodium hydroxide solution | Green precipitate |
Which two ions are present in compound X?
Fe3+ and Cl-
Fe3+ and SO42-
Fe2+ and Cl-
Fe2+ and SO42-
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