已知甲、乙、丙三种物质均含有同一种短周期元素,其中甲为单质

 已知甲、乙、丙三种物质均含有同一种短周期元素,其中甲为单质,其转化关系如下:

下列说法不正确

A.若丙既具有漂白性又具有氧化性,则丁可能是Cl2

B.若甲是某种金属,则丁可能是盐酸,也可能是氢氧化钠溶液

C.若甲是某种非金属,且甲和丙反应可以生成乙,则丁可能是Fe

D.若甲是某种非金属,则丙可能是一种用于制备防火材料的物质

答案

【答案】C

【解析】

试题分析:A、甲可能是氢气,乙是水,丁可能是Cl2,丙是次氯酸,符合转化,A项正确;B、若甲是铝,乙是氧化铝,丁可能是盐酸,生成的是氯化铝,也可能是氢氧化钠溶液,生成的是偏铝酸钠,符合转化,B项正确;C、若甲是某种非金属,乙是非金属氧化物,甲和丙反应可以生成乙,说明丙的化合价最高,乙处于中间价态,但是乙与铁反应化合价不可能提高,则丁不可能是FeC项错误;D、若甲是硅,乙是二氧化硅,则丙是硅酸钠,符合转化,D项正确;答案选C

考点:考查物质转化

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