A sample of toothpaste weighing 500 g, o...

A sample of toothpaste weighing 500 g, on analysis was found to contain 0.2 g of flurine .The concentration of flurine in ppm is

harmful for teeth

harmful to skin

harmful to bones

safe for teeth

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JEE MAINS PREVIOUS YEAR ENGLISH|Exercise CHEMSITRY|23 Videos
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JEE MAINS PREVIOUS YEAR ENGLISH-JEE MAINS 2020-CHEMSITRY

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