Home
Class 12
BIOLOGY
BOD of waste water is estimated by measu...

BOD of waste water is estimated by measuring the amount of

A

total organic matter

B

biodegradable organic matter

C

oxygen evolution

D

oxygen consumption

Text Solution

Verified by Experts

The correct Answer is:
D
BOD (Biochemical Oxygen Demand) refers to the amount of the oxygen that would be consumed if all the organic matter in one litre of water were oxidised by bacteria. Other options (a) (b) and (c) are incorrect.
Promotional Banner

Topper's Solved these Questions

  • HUMAN REPRODUCTION

    NCERT EXEMPLAR|Exercise Human Reproduction|48 Videos

  • MOLECULAR BASIS INHERITANCE

    NCERT EXEMPLAR|Exercise Molecular Basis Inheritance|71 Videos

Similar Questions

Explore conceptually related problems

BOD of wastwater is estimated by measuring the amount of

Assertion : The amount of BOD in the water is a measure of the amount of organic material in the water . Reason : Clear water has BOD less than 5 ppm whereas highly polluted water can have BOD value of 17 ppm or more .

BOD of drinking water is:

B.O.D. test is made for measuring

Assertion: The greater the BOD of waste water, less is its polluting potential. Reason: The effuent from the primary treatment plant is generally released into natural water bodies like rivers and streams.

the greater BOD of waste water

If BOD of sample water is very high, the sample is

The amount of biodergradable organic matter in sewage water can be estimated by measuring

NCERT EXEMPLAR-MICROBES IN HUMAN WELFARE -Microbes In Human Welfare
  1. Match the following list of bioactive substances and their roles. {:...

    Text Solution

    |

  2. The primary treatement of wastewater involves the removal of

    Text Solution

    |

  3. BOD of waste water is estimated by measuring the amount of

    Text Solution

    |

  4. Which one of the following alcoholic drinks is produced without distil...

    Text Solution

    |

  5. The technology of biogas production from cow dung was developed in ind...

    Text Solution

    |

  6. The free-living fungus Trichoderma can be used for

    Text Solution

    |

  7. What would happen if oxygen availability to activated sludge flocs is ...

    Text Solution

    |

  8. Mycorrhiza does nto help the host plant in

    Text Solution

    |

  9. Which one of the following is not a nitrogen-fixing organism ?

    Text Solution

    |

  10. Big holes in Swiss cheese are made by a

    Text Solution

    |

  11. The residue left after methane production from cattle dung is

    Text Solution

    |

  12. Mathanogens do not produce

    Text Solution

    |

  13. Activated sludge should have the ability to settle quickly so that it ...

    Text Solution

    |

  14. Match the items in column 'A' and column 'B' and choose correct answer...

    Text Solution

    |

  15. Why does 'Swiss cheese' have big holes?

    Text Solution

    |

  16. What are fermentors?

    Text Solution

    |

  17. Name a microbe used for statin production. How do statins lower blood ...

    Text Solution

    |

  18. Why do we prefer to call secondary waste water treatment as biological...

    Text Solution

    |

  19. What for nucleopolyhedro viruses are being used now a-days?

    Text Solution

    |

  20. How has the discovert of antibiotics helped mankind in the field of me...

    Text Solution

    |