[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f8fUroAJtGrBI6EL2ReyZ1lNQu7JZe0DIy6earokrZyU":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2025-11-21 19:31:19",238794183,[8,9,10,11],"Sn4+","Sn2+","Fe3+","Fe2+",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},14,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_48400144","无机及分析 第五章","已知:φӨ(Sn4+\u002FSn2+) = 0.15V,φӨ(Fe3+\u002FFe2+) = 0.77 V,则在两电对中,最强的还原剂是( )",[21,32,41,44,53,62,71,80,89,98],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],238794181,[25,26,27,28],"升高","降低","无变化","不能判断","将铜丝插入CuSO4溶液,银丝插入AgNO3溶液,组成原电池.如果在AgNO3溶液中加入氨水,则电池电动势的变化是( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],238794182,[36,37,38,39],"-0.763V","-1.52V","-1.76V","-1.26V","已知jӨ(Zn2+\u002FZn) = -0.763V,[Zn(CN)4]2+的稳定常数Kθf{[Zn(CN)4]2+}= 5×1016,则jӨ{[Zn(CN)4]2+\u002FZn}值为:( )",{"answer":42,"createTime":5,"id":6,"options":43,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":30,"type":31},[],238794184,[48,49,50,51],"1","2","3","4","在反应 Fe + CuSO4 = FeSO4 + Cu中电子转移数目是( )",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":30,"type":31},[],238794185,[57,58,59,60],"反应中元素的化合价发生升降变化","反应中发生电子转移","反应中一定有单质参加","氧化反应和还原反应一定同时存在","有关氧化还原反应的叙述错误的是( )",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":30,"type":31},[],238794186,[66,67,68,69],"> 0.800 V","< 0.337 V","> 0.800V, < 0.337V","0.337< φӨ < 0.800V","根据φθ(Ag+\u002FAg) = 0.800 V, φθ(Cu2+\u002FCu) = 0.337 V,标准态下能还原Ag+但不能还原Cu2+的还原剂与其对应的氧化态组成的电对的标准电极电势φӨ值应为( )",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":30,"type":31},[],238794187,[75,76,77,78],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fcc93eff6d4359b5f3941d882f6655c86.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F22eff75d0089dbe737705f62c08b4bc4.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fc58db46dd584562b5058325388f01362.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fef501fb192fc96e27701b44320a90380.png\">","下列电对中,j值不受酸度变化影响的为( )",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":30,"type":31},[],238794188,[84,85,86,87],"2Fe3+ + I2 = 2Fe2+ + 2I-","2Fe3+ + 2I- = 2Fe2+ + I2","2Fe2+ +2I- = 2Fe3+ + I2","2Fe2+ + I2 = 2Fe3+ + 2I-","已知φӨ (Fe3+\u002F Fe2+)=0.771V,φӨ (I2\u002F I-)=0.54V,则标态下能发生的反应为:( )",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],238794189,[93,94,95,96],"Fe3+,Cu","Fe3+,Br2","Fe3+,Sn2+","Fe3+,H2O2","下列各组物质在标准状态下能共存的是:( ). 已知φӨ (Fe3+\u002FFe2+)= 0.771 V,jӨ(Br2\u002FBr -) = 1.07V,jӨ(H2O \u002F H2O2) = 1.78V,φӨ(Cu2+\u002FCu) = 0.337 V,φӨ (Sn4+\u002FSn2+)= 0.15V",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":30,"type":31},[],238794190,[102,103,104,105],"Cu2+ + 2e- = Cu","I2 + 2e- = 2I-","2H+ + 2e- = H2","Fe3+ + e- = Fe2+","当下列电极反应中有关离子浓度减少一半时,电极电势升高的是:( )"]