Chemistry · 2021
JEE Main · 3 August 2021, Shift 2 · Q41
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason R Assertion A: Fluoride ion concentration above 2…
Given below are two statements: one is labelled as Assertion A and the other is labelled as Reason RAssertion A : Fluoride ion concentration above $\displaystyle 2$ ppm causes brown mottling of teeth.Reason R : The presence of fluoride ions in drinking water converts hydroxyapatite (tooth enamel) into fluorapatite.In the light of the above statements, choose the most appropriate answer from the options given below
Official answer
(1)
Both A and R are correct and R is the correct explanation of A
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JEE Main 2021 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.