Q46.Water sample is reported to be highly polluted if BOD (Biological Oxygen Demand) value of sample becomes (1) more than 17ppm (2) equal to 10ppm (3) equal to 5ppm (4) less than 5ppm
What This Question Tests
This conceptual question evaluates the knowledge of Biological Oxygen Demand (BOD) as a measure of organic pollution in water and its indicative values for highly polluted water samples.
Concepts Tested
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📋 Question Details
- Chapter
- Environmental Chemistry
- Topic
- Water pollution and BOD
- Year
- 2012
- Shift
- 12 May Online
- Q Number
- Q46
- Type
- MCQ
- NCERT Ref
- Class 11 Chemistry Ch 14: Environmental Chemistry
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