AP EAMCET202022 Sep 2020Evening ShiftChemistryp Block Elements (Group 15, 16, 17 & 18)Actual
Which halogen can be oxidised by concentrated nitric acid?
Options
- AFluorine
- BChlorine
- CBromine
- Dlodine
Correct answer
D. lodine
Step-by-step solution
Reducing properties increase from fluorine to iodine, so it is oxidised by nitric acid. I ₂+10 HNO ₃ 2 HIO ₃+10 NO ₂+4 H ₂ O Nitric acid oxidises iodine to iodic acid, HIO ₃ and not periodic acid HIO ₄ , which is of a higher oxidation state. Hence, option (4) is the correct.