[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fAKzS2alZ3uCIDcWIjcZs6iqQSbVVm935A-9M9Ch0JgI":3},{"id":4,"source":5,"question":6,"options":7,"answer":12,"related":13,"type":24,"origin":111,"createTime":26},288933235,"v1","下列化合物中,氧的氧化数为+2 的是 * ( )",[8,9,10,11],"F2O","BrO2","HClO2","Cl2O5",[],[14,27,37,47,57,67,77,87,97,107],{"id":15,"source":5,"question":16,"options":17,"answer":22,"related":23,"type":24,"origin":25,"createTime":26},288933226,"下列电对中, φΘ 值最低的是",[18,19,20,21],"HCN \u002F H2","H+\u002F H2","HF \u002F H2","H2O \u002F H2",[],[],0,null,"2025-12-27T09:22:56+08:00",{"id":28,"source":5,"question":29,"options":30,"answer":35,"related":36,"type":24,"origin":25,"createTime":26},288933227,"已知电池反应 ① 1 \u002F 2 Cu (s) + 1 \u002F 2 Cl2 (g) = 1 \u002F 2 Cu2+(1 mol∙L-1) + Cl-(1 mol∙L-1) E1 ② Cu (s) + Cl2 (g) = Cu2+(1 mol∙L-1) + 2 Cl-(1 mol∙L-1) E2 则电动势 E1 \u002F E2 的比值为",[31,32,33,34],"1.0","0.50","4","0.25",[],[],{"id":38,"source":5,"question":39,"options":40,"answer":45,"related":46,"type":24,"origin":25,"createTime":26},288933228,"在原电池中,下列叙述不正确的是** ( )",[41,42,43,44],"能将化学能转化为电能的装置称为原电池","发生氧化反应的为正极,发生还原反应的为负极","发生氧化反应的为负极,发生还原反应的为正极","电子从负极流出经导线至正极流入",[],[],{"id":48,"source":5,"question":49,"options":50,"answer":55,"related":56,"type":24,"origin":25,"createTime":26},288933229,"由下列反应设计的电池不需要惰性电极的是* ( )",[51,52,53,54],"2 Ce4+ + Sn2+ = 2 Ce3+ + Sn4+","Cu + Cl2 = Cu2+ + 2 Cl-","Zn + Cu2+ = Zn2+ + Cu","H2 (g) + O2 (g) = H2O ( l )",[],[],{"id":58,"source":5,"question":59,"options":60,"answer":65,"related":66,"type":24,"origin":25,"createTime":26},288933230,"关于标准电极电势的叙述中不正确的是** ( )",[61,62,63,64],"标准电极电势用符号jΘ表示","标准电极电势与电极反应方程式的书写无关","标准电极电势是在标准状态下与标准氢电极组成原电池测定的","标准电极电势的正负与电极反应的方向有关",[],[],{"id":68,"source":5,"question":69,"options":70,"answer":75,"related":76,"type":24,"origin":25,"createTime":26},288933231,"在原电池中,正极上发生的反应是",[71,72,73,74],"还原","分解","置换","氧化",[],[],{"id":78,"source":5,"question":79,"options":80,"answer":85,"related":86,"type":24,"origin":25,"createTime":26},288933232,"某电池(-)A∣A2+ (0.1 mol∙L-1 )‖B2+( 0.01 mol∙L-1 )∣B(+)的电动势E为0.27 v , 则该电池的标准电动势 EΘ 为 *** ( )",[81,82,83,84],"0.27 v","0.24 v","0.33 v","0.30 v",[],[],{"id":88,"source":5,"question":89,"options":90,"answer":95,"related":96,"type":24,"origin":25,"createTime":26},288933233,"已知 jΘ(Ag+ \u002F Ag)=0.7991 v,在电极的溶液中加入K2CrO4(s)(忽略体积变化),达平衡后[CrO42-]=0.500 mol∙L-1,Ksp Ag2CrO4=1.2×10-12,则新电极反应的标准电势值与下列数据中最接近的是( )",[91,92,93,94],"0.622 v","0.456 v","1.603 v","0.401 v",[],[],{"id":98,"source":5,"question":99,"options":100,"answer":105,"related":106,"type":24,"origin":25,"createTime":26},288933234,"对氧化还原反应 MnO2 + 4 HCl = MnCl2 + Cl2 + 2 H2O 下列原电池符号书写正确的是( ) (",[101,102,103,104],"(-) MnO2∣Mn2+,H+║Cl-∣Cl2 ,Pt (+)","(-) Pt ,Cl2∣Cl-║H+ ,Mn2+∣MnO2 ,Pt (+)","(-) Pt ,Cl2∣Cl-║H+ ,Mn2+∣MnO2 ,Mn (+)","(-) Pt ,MnO2∣Mn2+,H+║Cl-∣Cl2 ,Pt (+)",[],[],{"id":4,"source":5,"question":6,"options":108,"answer":109,"related":110,"type":24,"origin":25,"createTime":26},[8,9,10,11],[],[],{"courseName":112,"courseImg":113,"workName":114,"workId":114,"count":24,"courseId":115},"默认课程","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","","53e1d2ef4961cca8eea3e23969ad2cb9"]