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Question

Which of the following trace elements is present in virtually all potable water?

A
Lead
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B
Sodium
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C
Manganese
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D
Mercury
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Solution

The correct option is B Sodium
There are a variety of trace elements present in virtually all potable water, some of which play a role in metabolism. For example, sodium, potassium and chloride are common chemicals found in small quantities in most waters, and these elements play a role in body metabolism.

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