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Question

The chief source of iodine, in which it is present as sodium iodate, is:

A
Carnallite
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B
Sea weeds
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C
Caliche
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D
Iodine never exist as sodium iodate
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Solution

The correct option is D Caliche
Caliche is crude chile salt petre (NaNO3) which contains iodine as sodium iodate, NaIO3 impurity.

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