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Standard VIII
Biology
Formation of Curd
Fill in the b...
Question
Fill in the blank with the appropriate option.
Fluorosis disease is caused due to the reaction of ______ with excess of fluoride in the body.
A
Ca
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B
Mg
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C
Fe
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D
K
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Solution
The correct option is
A
Ca
Fluorosis disease is caused due to the reaction of Ca with an excess of fluoride in the body.
In fluorosis, the fluoride ions in water react with calcium present in the body to form calcium fluorides.
C
a
2
+
+
2
F
−
→
C
a
F
2
Ca2++2F−→CaF2
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