Water filled in two glasses A and B have BOD values of 10 and 20, respectively. The correct statement regarding them, is :
Show Hint
- B is more polluted than A.
- A is suitable for drinking, whereas B is not .
- Both A and B are suitable for dirnking
- A is more polluted than B.
The Correct Option is A
Solution and Explanation
Clean water has BOD below about 5 ppm; both A (10) and B (20) exceed this, so neither is suitable for drinking, which rules out options (2) and (3).
Since 20 \(\gt\) 10, B is more polluted than A, so option (4) is wrong.
Answer: (1) B is more polluted than A.
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