Chemistry - Complete Pblock- Question with Solution | TestHub
ChemistryComplete Pblock-p-Block 17,18Medium2 minPYQ_2020
ChemistryMediummatching list
The presence of soluble fluoride ion upto 1 ppm concentration in drinking water, is :
Options:
Answer:
D
Solution:
Soluble fluoride is often added to drinking water to make concentration upto 1 ppm because F– ions make the enamel on teeth much harder. But above 2 ppm cause brown mottling of teeth. Cause harmful effect on bones and teeth.
Stream:JEESubject:ChemistryTopic:Complete Pblock-Subtopic:p-Block 17,18
⏱ 2mℹ️ Source: PYQ_2020
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