Question

Which of the following is the higher limit of the Chemical oxygen demand of fruit juices ranges from 50g/l ?

(a) 200g/l

(b) 500g/l

(c) 25g/l

(d) 10g/l

This question was addressed to me in class test.

My question is taken from Dose topic in division Environmental Impact of Pollutants and Analysis of Dose – Effect Relationship of Environmental Biotechnology

Answer 1

Right answer is (a) 200g/l

For explanation: The Chemical oxygen demand or the COD of fruit juices ranges from 50g/l for tomato juice and to 200g/l for apricot juice, 1g of glucose is nearly equal to 1.066g of COD. So, the chemical oxygen demand of the fruit juices is really high.