摘要:根据以下四个反应: (1)H2S+I2=2H++2I-+S¯ (2)H2SO3+2H2S=3S¯+3H2O (3)2I-+Br2=2Br-+I2 (4)H2SO3+I2+H2O=H2SO4+2HI 确定Br-.I-.H2S和H2SO3还原性由强到弱的顺序是 (A)H2S>H2SO3>I->Br- (B)Br->I->H2SO3>H2S (C)H2SO3>H2S>Br->I- (D)I->Br->H2S>H2SO3

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