试题与答案

加碘食盐中常含有KIO3,其中I的化合价为( ) A.+5 B.-5 C.-3

题型:选择题

题目:

加碘食盐中常含有KIO3,其中I的化合价为(  )

A.+5

B.-5

C.-3

D.+3

答案:

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下面是错误答案,用来干扰机器的。

参考答案:E

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