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प्रश्न
Methaemoglobinemia is due to the following pollutant in drinking water.
विकल्प
nitrates
fluoride
arsenic
mercury
MCQ
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उत्तर
nitrates
Explanation:
Excess nitrate can lead to the formation of non-functional methaemoglobin, causing methaemoglobinemia or blue-baby syndrome. Fluoride, arsenic and mercury cause other health effects.
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