Exam questionKROK 2Pharmacy · 2016
During qualitative chemical analysis of nicotinic acid substance the reaction was conducted, which resulted in blue coloring. What reagent was used?
Answer options
- Thiocyanogen bromide reagent
- Sodium hydroxide solution
- Copper (II) sulfate solution
- Nessler’s reagent
- Iron (III) chloride solution
Correct answer
Copper (II) sulfate solution
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