Pick out the wrong statement.
(A) Biological oxygen demand (BOD) is a characteristic and not a
constituent of water
(B) BOD is a measure of the amount of oxygen which will be demanded &
used in 5 days by the biological decomposition of the organic matter present in
water stream present as food for the living organism
(C) BOD is expressed in mg/litre (typically, BOD=2.5 mg/litre for potable
water)
(D) None of these
(A) Biological oxygen demand (BOD) is a characteristic and not a
constituent of water
(B) BOD is a measure of the amount of oxygen which will be demanded &
used in 5 days by the biological decomposition of the organic matter present in
water stream present as food for the living organism
(C) BOD is expressed in mg/litre (typically, BOD=2.5 mg/litre for potable
water)
(D) None of these