已知在酸性溶液中,下列物质氧化KI时,自身发生如下变化: Fe3+→Fe

已知在酸性溶液中,下列物质氧化KI时,自身发生如下变化:

Fe3+Fe2+MnO4Mn2+ IO3I2HNO3NO

  如果分别用等物质的量的这些物质氧化足量的KI,得到I2最多的是

 AFe3+    BMnO4    CIO3    DHNO3

答案

C

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