JEE Main 20199 Jan, Evening shiftChemistryEasyEnvironmental Chemistry92× since 2004Which of the following conditions in drinking water causes methemoglobinemia?AOption A. > 50 ppm of leadBOption B. > 50 ppm of chlorideCOption C. > 50 ppm of nitrateDOption D. > 100 ppm of sulphateCheckSkip · show solution
