Question

Choose the most correct option.

Formula for the compound sodium hexacynoferrate (III) is ____________.

विकल्प

• [NaFe(CN)₆]

• Na₂[Fe(CN)₆]

• Na[Fe(CN)₆]

• Na₃[Fe(CN)₆]

Answer 1

The formula for the compound sodium hexacynoferrate (III) is  `bb(underline(Na_3[Fe(CN)_6])`.

Explanation:

Rules for naming:-

1. Name the complex ion or neutral molecule first, then the metal.
2. Aniomic ligand with the ending ide changed to – O – and the ending ate changed to – ato.
3. It is only one word.
4. Write O.S. after the name of the metal.
5. More than one ligand of the same type is present prefix, di, tri, tetra.
6. The ligands are then written in alphabetical order.