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Question 36

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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