JEE Main 2019 Chemistry question
Not in JEE Main or NEET syllabus
Water samples with BOD values of 4 ppm and 18 ppm, respectively are:
Answer: (A)
Solution
BOD < 5 ppm is clean; ≥ 17 ppm is highly polluted.
Not in JEE Main or NEET syllabus
Water samples with BOD values of 4 ppm and 18 ppm, respectively are:
BOD < 5 ppm is clean; ≥ 17 ppm is highly polluted.