以下是“海带中碘元素的分离及检验”实验过程中某个环节中的实验

以下是“海带中碘元素的分离及检验”实验过程中某个环节中的实验步骤,其中正确的是(  

A.将干海带用蒸馏水泡发

B.将海带灰用蒸馏水浸泡,取其浸取液,向其中加入四氯化碳

C.向海带灰的浸取液中,加入少量稀硫酸和过氧化氢溶液

D.将海带灰的浸取液加入分液漏斗中进行分液分离

答案

【答案】C

【解析】

试题分析:A、干海带泡发,含有水,不易烧成灰,故错误;B、海带中的碘以离子形式存在,不是单质,不溶于四氯化碳中,故错误;C、利用过氧化氢的氧化性,把I氧化成I2,故正确;D、海带灰有不溶于水的物质,应采用过滤方法,故错误。

考点:考查海带中提取碘的实验等知识。

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