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Match List I with List II
List-I (Species) List-2 (Maximum allowed concentration in ppm in drinking water)
A. F$$^-$$ I. < 50 ppm
B. SO$$_4^{2-}$$ II. < 5 ppm
C. NO$$_3^-$$ III. < 2 ppm
D. Zn IV. < 500 ppm
Choose the correct answer from the options given below.
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