Excess of which of the following in drinking | vedclass

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(A) The presence of excess fluoride in drinking water leads to a condition known as dental fluorosis,which is characterized by the mottling or stainin

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Fluorine

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(A) The presence of excess fluoride in drinking water leads to a condition known as dental fluorosis,which is characterized by the mottling or staining of teeth.Fluoride is beneficial in small amounts for the prevention of dental caries,but concentrations exceeding $1.5 	ext{ ppm}$ can cause skeletal and dental fluorosis.Therefore,the correct option is $A$.

Excess of which of the following in drinking water causes mottling of teeth?

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