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The complex ion formed when Fe2+ ions react with potassium thiocyanate (KSCN) is:
  • a)
    Fe(SCN)2+
  • b)
    Fe(SCN)2
  • c)
    Fe(SCN)3
  • d)
    Fe(SCN)4-
Correct answer is option 'A'. Can you explain this answer?
Most Upvoted Answer
The complex ion formed when Fe2+ ions react with potassium thiocyanate...
When Fe2+ ions react with potassium thiocyanate (KSCN), the complex ion formed is iron(II) thiocyanate, which is represented as Fe(SCN)2+. The Fe2+ ion combines with the SCN- ion to form this complex.
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The complex ion formed when Fe2+ ions react with potassium thiocyanate...
The complex ion formed when Fe2+ ions react with potassium thiocyanate (KSCN) is Fe(SCN)2.

Explanation:

When Fe2+ ions react with potassium thiocyanate (KSCN), a complex ion is formed. In this reaction, the Fe2+ ions react with the SCN- ions from KSCN to form a coordination compound.

The reaction can be represented as follows:

Fe2+ + 2 SCN- → Fe(SCN)2

Here, the Fe2+ ion acts as the central metal ion, and the SCN- ion acts as the ligand. The ligand SCN- donates its lone pair of electrons to form coordinate bonds with the metal ion Fe2+.

Key Points:
- Fe2+ ions react with SCN- ions from KSCN to form a complex ion.
- The complex ion formed is Fe(SCN)2.
- Fe2+ acts as the central metal ion.
- SCN- acts as the ligand and forms coordinate bonds with Fe2+.

In the complex ion Fe(SCN)2, the Fe2+ ion is surrounded by two SCN- ligands. The ligands are attached to the central metal ion through coordinate bonds.

Visually appealing content:

Complex ion formed when Fe2+ ions react with KSCN:

Reaction:
Fe2+ + 2 SCN- → Fe(SCN)2

Explanation:
- Fe2+ ions react with SCN- ions from KSCN to form a complex ion.
- The complex ion formed is Fe(SCN)2.
- Fe2+ acts as the central metal ion.
- SCN- acts as the ligand and forms coordinate bonds with Fe2+.

Key Points:
- Fe2+ ions react with SCN- ions from KSCN to form a complex ion.
- The complex ion formed is Fe(SCN)2.
- Fe2+ acts as the central metal ion.
- SCN- acts as the ligand and forms coordinate bonds with Fe2+.
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