Exam questionKROK 2Pharmacy ยท 2018
An analytical chemist performs quantitative analysis of isoniazid by means of direct bromatometry with volumetric solutions of potassium bromate, potassium bromide, hydrochloric acid and methyl red as an indicator. This method is based on the following reaction:
Answer options
- Oxidation of the hydrazine group with bromine
- Oxidation of the hydrazine residue with potassium bromide
- Reduction of the hydrazine residue with bromine
- Bromination of the pyridine ring
- Opening of the pyridine ring
Correct answer
Oxidation of the hydrazine group with bromine
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