Mention a few application of cod test in environmental engineering practice.
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How to do acidity alkanity test ofsodium chloride
Why ate shadows longer at the end of the day ?
Why are the bright circles of light seem under the trees, when the sun shines?
Why are leaves of trees green ?
What is viscosity-coefficient of a liquid?
Why is a vessel of water heats more quickly, when heat is applied at the bottom than it is heated at the top?
Why are substances like caustic soda and calcium chloride called hygroscopic substances ?
What is chemical oxygen demand?
Explain the Purification of Organic Compounds ?
Why are the titration involving edta carried out slowly towards the end point?
Why be is not soluble in liquid ammonia?
Why does a piece of iron float on mercury, but sink in water ?