Which of the below factors do not favour high efficiency?

In which year was the ozone named?

In case along with silica, there is high content in sulphide and chloride what should be used?

While designing the demineralisation plant what is considered as the strong acidic cation load?

_______ is the universal solvent.

How many molecules of oxygen are required for one molecule of nitrogen?

What is the permitted concentration of arsenic in drinking water?

Above pH 7, ammonia will be in the form of soluble ammonia ions.