Which of the following substances are commonly used in a ...
Which of the following substances are commonly used in a filter?
Charcoal
Sand
Both (a) and (b)
Aluminum chloride
Correct answer is C
No explanation has been provided for this answer.
Both temporary and permanent hardness of water can be removed on boiling water with ...
The chemical oxygen demand (COD) measures the ...
Permanent hardness of water may be removed by the addition of ...
Juice clarification extraction is facilitated by using ...
Which of the enzyme combination is commercially used for the removal of oxygen? ...
Milk digestibility is improved by using ...
Temporary hardness of water may be removed by adding ...
Coliform bacteria in water is an indication of the presence of ...