Home
Class 11
CHEMISTRY
What is Chemical Oxygen Demand (COD) ?...

What is Chemical Oxygen Demand (COD) ?

Text Solution

Verified by Experts

The amount of oxygen required to oxidise organic substances present in polluted water is called a chemical oxygen demand.
Promotional Banner

Topper's Solved these Questions

  • MODEL PAPER 11

    VGS PUBLICATION-BRILLIANT|Exercise SECTION - B|8 Videos

  • MODEL PAPER 11

    VGS PUBLICATION-BRILLIANT|Exercise SECTION - C|4 Videos

  • MODEL PAPER 10

    VGS PUBLICATION-BRILLIANT|Exercise SECTION-C|3 Videos

  • MODEL PAPER 12

    VGS PUBLICATION-BRILLIANT|Exercise SECTION - C|3 Videos

Similar Questions

Explore conceptually related problems

What is Biochemical Oxygen Demand (BOD) ?

Among the following, find.the number of correct statements? Sea water and trees are big sinks for carbondioxide. Geater the chemical oxygen demand (COD) and biochemical oxygen demand (BOD) values, greater is the extent of pollution. Lesser the threshold limit value (TLV), greater the toxicity Ozone layer present in stratosphere acts as protective umbrella form hamful sunrays. Flouride ion in drinking water is detected by using zirconium alizarin - S dye. The dye loses its colour in the presence of flouride. Human ear can tolerate the sound upto the intensity 60 decibles.

Biochemical Oxygen Demand (BOD) in river water

Biochemical Oxygen Demand (BOD) in a river water

Biochemical Oxygen Demand (BOD) may not be a good index for pollution for water bodies receiving effluents from

What is chemical volcano ?

In which one of the following the BOD (Bio-chemical Oxygen Demand) of sewage (S), distillery effluent (DE), paper mill effluent (PE) and sugar mill effluent (SE) have been arranged in ascending order ?

What is a chemical equation?