4. 由=0.54V和=0.77V,可知（）（1分）-湖北继续教育网网校

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[单选题]4. 由=0.54V和=0.77V,可知（）（1分）

AAFe2+与I2能反应BFe2+比I-还原能力强CFe3+与I-能反应

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