[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fSxZdBseL7EN65-l_tdMPy4uJBDf_pGU0pJXGwyLz2jQ":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2023-05-11 16:39:54",5510927,[8,9,10,11],"甲醇","水","氯仿","环已烷",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},20,"ed0884e2c0594a1734f02bc5a7a36ae1","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F6c1138637daf984b553d0b4c0789c40d.jpeg","高分子材料测试方法","a8cadf990bdd485a9a5e9c232126aa4d","","在下列溶剂中测定化合物CH3COCH=C(CH3)2的n&rarr;&pi;*跃迁,吸收带波长最短者是( )",[21,32,41,50,57,66,69,78,84,89],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],5510922,[25,26,27,28],"能量越大","频率越高","波数越大","波长越长","电子能级间隔越小,跃迁时吸收光子的( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],5510923,[36,37,38,39],"可见光区","紫外光区","X射线光区","红外光区","同一电子能级,振动态变化时所产生的光谱波长范围是( )",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],5510924,[45,46,47,48],"100-200","200-400","400-800","800-1300","所谓真空紫外区,其波长范围是( )nm",{"answer":51,"createTime":5,"id":52,"options":53,"question":56,"source":30,"type":31},[],5510925,[37,54,55,36],"红外区","无线电波","下面四个电磁辐射区域频率最小的是( )",{"answer":58,"createTime":5,"id":59,"options":60,"question":65,"source":30,"type":31},[],5510926,[61,62,63,64],"&sigma;&rarr;&sigma;*","&pi;&rarr;&sigma;*","n&rarr;&pi;*","&pi;&rarr;&pi;*","以下四种类型的电子能级跃迁,需要能量最大的是( )",{"answer":67,"createTime":5,"id":6,"options":68,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":70,"createTime":5,"id":71,"options":72,"question":77,"source":30,"type":31},[],5510928,[73,74,75,76],"1,4-戊二烯","1,3-丁二烯","1,3-环已二烯","1,3,5-已三烯","下列化合物中,&pi;&rarr;&pi;*跃迁需能量最大的是( )",{"answer":79,"createTime":5,"id":80,"options":81,"question":83,"source":30,"type":31},[],5510929,[63,61,64,82],"n&rarr;&sigma;*","某种物质的己烷溶液的紫外光谱,有个吸收带在305nm,但在乙醇溶液中这个吸收带移到307nm,该吸收带是由下面哪一种类型跃引起( )",{"answer":85,"createTime":5,"id":86,"options":87,"question":88,"source":30,"type":31},[],5510930,[64,62,82,61],"丙酮在己烷中的紫外吸收&lambda;max为279nm, &epsilon;= 14.8,该吸收带是由哪种跃迁引起的( )",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":30,"type":31},[],5510931,[93,94,95,96],"CH2=CHCH=O","CH&equiv;C-CH=O","苯乙酮","苯乙烯","以下四种化合物,能同时产生B吸收带、K吸收带和R吸收带的是( )"]