NEET2017Chemistryd and f Block ElementsActual
When I ⁻ is oxidised by MnO ₄⁻ in alkaline medium, I ⁻ converts into
Options
- AIO ₃⁻
- BI₂
- CIO ₄⁻
- DI0⁻
Correct answer
A. IO ₃⁻
Step-by-step solution
When I ⁻ is oxidised by MnO ₄⁻ in alkaline medium, I ⁻ converts into IO ₃⁻ . The reaction occurs as follows. gathered 2 KMnO ₄+2 KOH K ₂ MnO ₄+ H ₂ O +[ O ] [2] K ₂ MnO ₄+2 H ₂ O 2 MnO ₂+4 KOH +2[ O ] 2 KMO ₄+ H ₂ O Alkaline 2 MnO ₂+2 KOH +3[O] gathered KI +3[ O ] KIO ₃ i.e. IO ₃⁻ -ion