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Exam questionKROK 1Pharmacy ยท 2009

What analytical effect is observed when potassium cation is being determined by the sodium hexanitrocobaltate (III) solution?

Answer options

  1. Yellow crystalline precipitate
  2. Yellow colouring of the solution
  3. Black crystalline precipitate
  4. White crystalline precipitate
  5. Red crystalline precipitate
Correct answer

Yellow crystalline precipitate

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