Exam questionKROK 2Pharmacy ยท 2014
A pharmaceutical analyst has to test the substance of iron sulfate heptahydrate for purity. What reagent should be used to detect zinc cation in the substance?
Answer options
- Potassium ferrocyanide
- Silver nitrate
- Ammonium oxalate
- Barium chloride
- Sodium tetraphenylborate
Correct answer
Potassium ferrocyanide
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