B +NaOH rarrDirty green ppt. overset(NH_(3))underset(("excess"))rarr Insoluble Which of the following statements is/are correct regarding (B)?

B +NaOH rarrDirty green ppt. overset(NH_(3))underset(("excess"))rarr

1.	B +NaOH rarrDirty green ppt. overset(NH_(3))underset(("excess"))rarr Insoluble Which of the following statements is/are correct regarding (B)?
Answer» It is a soluble salt It is easily oxidisable by air It gets converted into higher oxidation STATE chloride with `SO_(2)` when `pH` of the medium is 1-2 It's oxidation state is `+3` Solution :`X rarr Fe_(2)O_(3), A rarr FeCI_(3), B rarr FeI_(2)`, `FeI_(2)+2NaOH rarr underset(("DIRTY green PPT"))(Fe(OH)_(2)darr+2NaI)` `Fe^(3+) +[Fe(CN)_(6)]^(4-)` gives same blue COLOURATION as `Fe^(2+) +[Fe(CN)_(6)]6(3-)`