Consider following figure and answer the questions at the end of it. Figure explains elevation in boiling point when a non-volatile solute is added to a solvent. Variation of vapour pressure with temperature and showing elevation in boiling point. A complex of iron and cyanide ions is 100% ionized at 1m (molal). If elevation in boiling point is 2.08^(@)(K_(b)=0.52^(@)mol^(-1)kg) then the complex is:

Consider following figure and answer the questions at the end of it. F

1.	Consider following figure and answer the questions at the end of it. Figure explains elevation in boiling point when a non-volatile solute is added to a solvent. Variation of vapour pressure with temperature and showing elevation in boiling point. A complex of iron and cyanide ions is 100% ionized at 1m (molal). If elevation in boiling point is 2.08^(@)(K_(b)=0.52^(@)mol^(-1)kg) then the complex is:
Answer» `K_(3)[Fe(CN)_(6)]` `Fe(CN)_(2)` `K_(4)[Fe(CN)_(6)]` `Fe(CN)_(4)` ANSWER :A