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NTA Abhyas 2020
Exam
NTA Abhyas
Year
2020
Subject
Chemistry
Chapter
Environmental Chemistry

NTA Abhyas 2020 · Chemistry · Environmental Chemistry

Which of two water sample A & B with BOD of 10 and 20 respectively,...

Which of two water sample A & B with BOD of 10 and 20 respectively, then mark correct option

Options

  1. AAA is more polluted
  2. BBB is more polluted
  3. CAA and BB both are equally polluted
  4. DAA and BB both are equally suitable for drinking.

Correct answer

B. BB is more polluted

Step-by-step solution

BODBOD for a clean water should be less than 5;5;& where as highly polluted water could have a BOD value of 17 ppm or more.
So, B is more polluted and not suitable for drinking
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