挑战习题
1/5单选题
难度:

1.下列含有硫元素的物质中,硫元素的化合价最高的是
A H2SO3
B H2SO4
C KHSO3
D Na2S2O3
提示1:
5pys6aKY6ZyA6KaB5qC55o2u4oCc5YyW5ZCI5Lu35Luj5pWw5ZKM5Li6MOKAneeahOWOn+WImeS4gOS4gOiuoeeul+OAgg==
提示2:
SOeahOWMluWQiOS7t+Wdh+S4uisx77yMT+eahOWMluWQiOS7t+Wdh+S4ui0y77yMS+eahOWMluWQiOS7t+S4uisx77yMTmHnmoTljJblkIjku7fkuLorMS4=
正确答案:Qg==
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