For BOD test, incorrect statement is
(a) The test is carried out for number of days at 20 degree celsius
(b) Five days is the most common duration
(c) both a and b
(d) None of the mentioned
I have been asked this question in homework.
Origin of the question is Material balances for a Combustion System-II in section Material Balances without Reaction and Material Balances Involving Reactions of Chemical Process Calculation