根据下列三个反应判断有关物质(或微粒)还原性由强到弱的顺序是
①H2SO3+I2+H2O=2HI+H2SO4
②2FeCl3+2HI=2FeCl2+2HCl+I2
③3FeCl2+4HNO3=2FeCl3+NO十+2H2O+Fe(NO3)3
| A．H2SO3 >I-> Fe2+ >NO | B．I->Fe2+> H2SO3 >NO |
| C．Fe2+ >I-> H2SO3 >NO | D．NO>Fe2+>H2SO3 >I- |
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