[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$f-MlPzVeP6YzdRTC83hUz8-afEHpAXJBB6QYkmbmKkqc":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":31,"type":42},[],"2026-03-20 17:42:55",326012578,[8,9,10,11],"在SnCl2由适量到过量的情况下,Hg2+能够被还原为Hg(I)及进一步被还原为单质Hg","随着反应条件不同,实验中生成的Cu2O可呈现黄色或者红色","在CuI生成实验中需要加入Na2S2O3以便更好地观察CuI沉淀的颜色","在CuCl2溶液中加入浓盐酸和铜粉,可观察到溶液会由绿色变为深棕色",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},10,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","dfcb4774a5ac4732bb105697e171f102","","以下描述中,正确的是( )",[21,33,43,52,61,66,71,76,81,86],{"answer":22,"createTime":23,"id":24,"options":25,"question":30,"source":31,"type":32},[],"2026-03-20 17:40:51",326011944,[26,27,28,29],"它们的氢氧化物均呈两性","它们的氧化物均可加氨水转化为氨配合物","此五种元素中,Ag和Hg的氢氧化物不稳定","它们的氧化物均为黑色","(单选题)以下关于铜、银、锌、镉、汞氧化物或氢氧化物的描述,其中正确的是( )","v1",0,{"answer":34,"createTime":23,"id":35,"options":36,"question":41,"source":31,"type":42},[],326011945,[37,38,39,40],"它们的硫化物均难溶于水","它们的硫化物均为黑色","此五种元素的硫化物中,HgS的溶解度最小","此五种硫化物均可溶于浓硝酸","(多选题)对于铜、银、锌、镉、汞硫化物的描述,以下正确的是( )",1,{"answer":44,"createTime":23,"id":45,"options":46,"question":51,"source":31,"type":42},[],326011946,[47,48,49,50],"它们均可生成稳定的氨配合物","Hg2+溶液中加入KI,在KI由适量到过量的情况下会先生成沉淀然后沉淀消失得到无色溶液","Cu的配合物均为蓝色","在Zn2+溶液中,逐滴加入NaOH和氨水,均会先生成沉淀然后沉淀消失变为无色溶液","(多选题)以下关于铜、银、锌、镉、汞配合物的描述,其中正确的是( )",{"answer":53,"createTime":23,"id":54,"options":55,"question":60,"source":31,"type":42},[],326011947,[56,57,58,59],"它们的水溶液均显蓝色","它们之间可以互相转化","Cu(I)在难溶盐和配合物的形式下能够稳定存在","在Cu2+溶液中滴加KI会生成CuI2沉淀","(多选题)关于Cu(I)和Cu(II),以下描述中正确的是( )",{"answer":62,"createTime":23,"id":63,"options":64,"question":65,"source":31,"type":42},[],326011948,[8,9,10,11],"(多选题)以下描述中,正确的是( )",{"answer":67,"createTime":5,"id":68,"options":69,"question":70,"source":31,"type":32},[],326012574,[26,27,28,29],"以下关于铜、银、锌、镉、汞氧化物或氢氧化物的描述,其中正确的是( )",{"answer":72,"createTime":5,"id":73,"options":74,"question":75,"source":31,"type":42},[],326012575,[37,38,39,40],"对于铜、银、锌、镉、汞硫化物的描述,以下正确的是( )",{"answer":77,"createTime":5,"id":78,"options":79,"question":80,"source":31,"type":42},[],326012576,[47,48,49,50],"以下关于铜、银、锌、镉、汞配合物的描述,其中正确的是( )",{"answer":82,"createTime":5,"id":83,"options":84,"question":85,"source":31,"type":42},[],326012577,[56,57,58,59],"关于Cu(I)和Cu(II),以下描述中正确的是( )",{"answer":87,"createTime":5,"id":6,"options":88,"question":19,"source":31,"type":42},[],[8,9,10,11]]