Question

Statement 1: Potassium ferrocyanide is diamagnetic whereas potassium ferricyanide is paramagnetic.
Statement 2: Crystal field splitting in ferrocyanide ion is greater than that o f ferricyanide ion.

• A. If both Statement 1 and Statement 2 are true and the statement 2 is the correct explanation o f the statement 1.
• B. Ifboth Statement 1 and Statement 2 are true but statement 2 is not the correct explanation of the statement 1.
• C. If Statement 1 is true but Statement 2 is false.
• D. If Statement 1 is false but Statement 2 is true.

Answer 1

Answer: (C)

$K_{4}[Fe(CN)_{6}]$ and $K_{3}[Fe(CN)_{6}]$ both are low spin complex due to strong ligand field. That is why it is false that crystal field splitting in ferrocyanide ion is greater than ferricyanide ion.