JEE Main 202131 Aug, Morning shiftChemistryEasyEnvironmental Chemistry92× since 2004BOD values (in ppm) for clean water (A) and polluted water (B) are expected respectively :AOption A. A > 50, B < 27BOption B. A > 25, B < 17COption C. A < 5, B > 17DOption D. A > 15, B > 47CheckSkip · show solution
