Home
Class 11
CHEMISTRY
When huge amount of sewage is dumped int...

When huge amount of sewage is dumped into a river the BOD will:

A

Increase

B

Remain unchanged

C

Slightly decrease

D

Decrease

Text Solution

Verified by Experts

The correct Answer is:
A

The degree of pollution is directly proportional to BOD, therefore more the organic pollution (specially sewage), more would be BOD of water.
Promotional Banner

Topper's Solved these Questions

  • ENVIRONMENTAL CHEMISTRY

    ERRORLESS|Exercise NCERT BASED QUESTIONS ( DIFFERENT TYPES OF POLLUTION AND POLLUTANTS)|18 Videos
  • ENVIRONMENTAL CHEMISTRY

    ERRORLESS|Exercise PAST YEARS QUESTIONS|17 Videos
  • ENVIRONMENTAL CHEMISTRY

    ERRORLESS|Exercise ASSERTION & REASON|7 Videos
  • CLASSFICATION OF ELEMENTS AND PERIODICITY IN PROPERTIES

    ERRORLESS|Exercise Assertion & Reason |14 Videos
  • GENERAL ORGANIC CHEMISTRY

    ERRORLESS|Exercise ASSERTION AND REASON|14 Videos

Similar Questions

Explore conceptually related problems

When huge amount of sewage is dumped into a river, its BOD will

When a huge amount of sewage is dumped into a river, what will be the effect on BOD?

(a) What would happen if a large volume of untreated sewage is discharged into a river? (b) In what way anaerobic sludge digestion is important in sewage treatments?

A large quantity of urban sewage is drained to a nearby river. Which among the given conditions would happen after mixing of sewage into the river (i) BOD of receiving water body increases (ii) DO of receiving water body decreases (iii) It will not cause mortality among fishes and other aquatic creatures. (iv) It will lead to nutrient enrichment of receiving water body

A large quantity of urban sewage is drained to a nearby river. Which among the given conditions would happen after mixing of sewage into the river (i) BOD of receiving water body increases (ii) DO of receiving water body decreases (iii) It will not cause mortality among fishes and other aquatic creatures (iv) it will lead to nutrients enrichment of receiving water body

When domestic sewage mixes with river water

ERRORLESS-ENVIRONMENTAL CHEMISTRY-NCERT BASED QUESTIONS (WATER POLLUTION)
  1. Brewery and sugar factory waster alters the quality of a water body by...

    Text Solution

    |

  2. Measurement of rate of oxygen utillsation by a unit volume of water ov...

    Text Solution

    |

  3. When huge amount of sewage is dumped into a river the BOD will:

    Text Solution

    |

  4. A dental disease characterised by motting of teeth is due to presence ...

    Text Solution

    |

  5. Fishes die by sewage because

    Text Solution

    |

  6. The high amount of E, coli in water is the

    Text Solution

    |

  7. Biological oxygen demand (BOD) is a measure of

    Text Solution

    |

  8. Black-foot disease is caused due to groundwater contaminated with exce...

    Text Solution

    |

  9. B.O.D. is connected with

    Text Solution

    |

  10. Minimata disease first occurred in

    Text Solution

    |

  11. Sewage containing organic waste should not be disposed in water bodies...

    Text Solution

    |

  12. Limit of BOD prescribed by Central Pollution Control Board for the dis...

    Text Solution

    |

  13. Thermal pollution of water bodies is due to discharge of:

    Text Solution

    |

  14. Biological treatment of water pollution is done with the help of

    Text Solution

    |

  15. Polluted water can be purified by using

    Text Solution

    |

  16. Foul smell in the water of tanks, ponds etc. is due to

    Text Solution

    |

  17. Minamata disease was caused due to the consumption of

    Text Solution

    |

  18. Which of the following plant is used for the purification of water

    Text Solution

    |

  19. Which of the following metal is a water pollutant and causes sterility...

    Text Solution

    |

  20. Eutrophication is caused by

    Text Solution

    |