Q.

Maximum limit of nitrate in drinking water is ____ ppm and its excess concentration causes ____

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a

50 ppm, kidney damage

b

50 ppm, blue baby syndrome

c

10 ppm, tooth decay

d

> 500 ppm, Laxative effect

answer is B.

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Maximum limit of NO3 in drinking water is 50 ppm it causes blue baby syndrome.

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Maximum limit of nitrate in drinking water is ____ ppm and its excess concentration causes ____