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        1. 根據(jù)以下四個反應(yīng): (1)H2S+I2=2H++2I-+S¯ (2)H2SO3+2H2S=3S¯+3H2O (3)2I-+Br2=2Br-+I2 (4)H2SO3+I2+H2O=H2SO4+2HI 確定Br-.I-.H2S和H2SO3還原性由強(qiáng)到弱的順序是 (A)H2S>H2SO3>I->Br- (B)Br->I->H2SO3>H2S (C)H2SO3>H2S>Br->I- (D)I->Br->H2S>H2SO3 查看更多

           

          題目列表(包括答案和解析)

          根據(jù)以下四個反應(yīng):

          (1)H2S+I2=2H++2I+S¯   

          (2)H2SO3+2H2S=3S¯+3H2O                 

          (3)2I+Br2=2Br+I2      

          (4)H2SO3+I2+H2O=H2SO4+2HI

          確定Br、I、H2S和H2SO3還原性由強(qiáng)到弱的順序是(  )

          A.H2S>H2SO3>I>Br-       B.Br->I>H2SO3>H2S

          C.H2SO3>H2S>Br->I       D.I>Br>H2S>H2SO3

           

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          根據(jù)以下四個反應(yīng):(1)H2S+I2=2H++2I+S¯       (2)H2SO3+2H2S=3S¯+3H2O

          (3)2I+Br2=2Br+I2          (4)H2SO3+I2+H2O=H2SO4+2HI

          確定Br、I、H2S和H2SO3還原性由強(qiáng)到弱的順序是                                  

          A.H2S>H2SO3>I>Br                  B.Br->I>H2SO3>H2S

          C.H2SO3>H2S>Br>I                  D.I>Br>H2S>H2SO3

           

          查看答案和解析>>

          根據(jù)以下四個反應(yīng):(1)H2S+I2=2H++2I+S¯    (2)H2SO3+2H2S=3S¯+3H2O

          (3)2I+Br2=2Br+I2       (4)H2SO3+I2+H2O=H2SO4+2HI

          確定Br、I、H2S和H2SO3還原性由強(qiáng)到弱的順序是

          A.H2S>H2SO3>I>Br-       B.Br->I>H2SO3>H2S

          C.H2SO3>H2S>Br->I       D.I>Br>H2S>H2SO3

           

          查看答案和解析>>

          根據(jù)以下四個反應(yīng):(1)H2S+I2=2H++2I+S¯   (2)H2SO3+2H2S=3S¯+3H2O
          (3)2I+Br2=2Br+I2      (4)H2SO3+I2+H2O=H2SO4+2HI
          確定Br、I、H2S和H2SO3還原性由強(qiáng)到弱的順序是

          A.H2S>H2SO3>I>Br-B.Br->I>H2SO3>H2S
          C.H2SO3>H2S>Br->ID.I>Br>H2S>H2SO3

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          根據(jù)以下四個反應(yīng):(1)H2S+I2=2H++2I+S¯      (2)H2SO3+2H2S=3S¯+3H2O
          (3)2I+Br2=2Br+I2         (4)H2SO3+I2+H2O=H2SO4+2HI
          確定Br、I、H2S和H2SO3還原性由強(qiáng)到弱的順序是                                  

          A.H2S>H2SO3>I>BrB.Br->I>H2SO3>H2S
          C.H2SO3>H2S>Br>ID.I>Br>H2S>H2SO3

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