Chemistry · 2020
JEE Main · 6 September 2020, Shift 1 · Q39
The presence of soluble fluoride ion upto 1 ppm concentration in drinking water, is:
The presence of soluble fluoride ion upto $\displaystyle 1$ ppm concentration in drinking water, is :
Official answer
(1)
safe for teeth
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JEE Main 2020 Chemistry question, with the answer from NTA’s final answer key. Where our answers come from.