Chemistry · 2024
JEE Main · 9 April 2024, Shift 1 · Q67
The F^- ions make the enamel on teeth much harder by converting hydroxyapatite (the enamel on the surface of teeth) into much harder fluoroapatite…
The $\displaystyle \mathrm{F}^{-}$ions make the enamel on teeth much harder by converting hydroxyapatite (the enamel on the surface of teeth) into much harder fluoroapatite having the formula.
Official answer
From NTA’s final answer key for this paper.
(3)
$\displaystyle \left[3\left(\mathrm{Ca}_3\left(\mathrm{PO}_4\right)_2\right) \cdot \mathrm{CaF}_2\right]$
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JEE Main 2024 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.