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Question

Which of the following metals is a water pollutant?

A
As
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B
Cu
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C
Mg
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D
Na
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Solution

The correct option is A As

Toxic organic substances like arsenic and mercury cause water pollution. Arsenic contamination of groundwater is now a major problem. Arsenic poisoning first produces skin disease, leading to gangrene and cancer. It also causes many other complications such as blindness, liver and heart problems, diabetes and goitre.


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