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JEE Advanced2025Chemistryp Block Elements (Group 15, 16, 17 & 18)Actual

During sodium nitroprusside test of sulphide ion in an aqueous solution, one of the ligands coordinated to the metal ion is converted to

Options

  1. ANOS ⁻
  2. BSCN ⁻
  3. CSNO ⁻
  4. DNCS ⁻

Correct answer

A. NOS ⁻

Step-by-step solution

Na ₂ [ Fe ( CN )₅( NO ) ]+ Na ₂ ~S Na ₄ [ Fe ( CN )₅( NOS ) ] Sodium nitroprusside purple solution

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