6. What forms from [Fe(H2O)6]3+ with a base added dropwise?

• Fe(H2O)4(OH)2 (Green precipitate)
• Fe(H2O)3(OH)3 (Brown precipitate)
• Fe(H2O)3(OH)3 (Green precipitate)
• Fe(H2O)4(OH)2 (Brown precipitate)