溴、碘主要存在于海水中,有“海洋元素”的美称.海水中的碘富集

溴、碘主要存在于海水中,有“海洋元素”的美称.海水中的碘富集在海藻中,我国海带产量居世界第一,除供食用外,大量用于制碘.提取碘的途径如下所示:

下列有关叙述正确的是

A.碘元素在海水中也有游离态存在

B.操作A是结晶或重结晶

C. B是提纯操作,常用蒸馏

D.在提取的过程中用的氧化剂可以是H2O2

 

答案

D

解析:

 

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