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Column-I Column-II
A) Do limit P) 9 ppm
B) TLV Q) 4-6 ppm
C) F^– ion of water for drinking R) Blue body syndrome
D) ${NO}_{3}^{-}$ present in water exceeds S) 1 ppm
(A) (B) (C) (D)
1) Q P S R
2) P Q R S
3) S Q R P
4) S R Q P

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Detailed Solution

DO - Limit - 4 - 6 ppm TLV - 9 ppm F^– ion of water 1 ppm suitable for drinking ${NO}_{3}^{-}$ ion in water cause blue body syndrome

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