JEE Main 2021 · ChemistryMultiple choiceTwo statementsEasyRecall
JEE Main 24 February 2021, Shift 2, Chemistry Q41
Question 41 of 90 in this shift, Chemistry question 11 of 30, Section A.
Given below are two statements :
The value of the parameter “Biochemical Oxygen Demand (BOD)” is important for survival of aquatic life.
The optimum value of BOD is 6.5 ppm.
In the light of the above statements, choose the answer from the options given below :
- (1)Both and are true
- (2)Both and are false
- (3) is true but is falseOfficial answer
- (4) is false but is true
Official answer
Option 3
NTA final key.
- Chapter
- Environmental Chemistry
- Idea tested
- Water Quality BOD and COD