The phosphate present in sewage water which cause eutrophication Can be removed by adding:

Related Mcqs:

1. Solution having the property of a very little change in pH on adding a small amount of strong acid or base is called________________?

   A. buffer solution
   B. normal solution
   C. standard solution
   D. neutral solution

2. The percentage of suspended solid waste in raw water is removed by coagulation is__________________?

   A. 60
   B. 70
   C. 80
   D. 90

3. Water of crystallization can be removed by________________?

   A. drying
   B. heating
   C. evaporation
   D. All of the above

4. DAP (Diammonium hydrogen phosphate) contains ______________ plant nutrients?

   A. 60%
   B. 65%
   C. 70%
   D. 75%

5. In water, Hydrogen is present ________by mass.

   A. 22%
   B. 11.11%
   C. 31.13%
   D. 15.15%

   Submitted by: Aamir khan Hullio

6. In the production of wrought iron Mg Si and P are removed in the form of___________________?

   A. oxides
   B. silicates
   C. slag
   D. carbonates

7. Arsenic oxides are removed by passing through_________________?

   A. Ferric hydroxide
   B. Sodium hydroxide
   C. Calcium hydroxide
   D. Aluminium hydroxide

8. When one hydrogen atom of alkane is removed then it is called________________?

   A. alkene
   B. alkyl
   C. aldehyde
   D. saturated hydrocarbon

9. Chlorination of water may be harmful if the water contains_________________?

   A. Ammonia
   B. Dissolved oxygen
   C. Carbon dixide
   D. All

10. In water molecule, Hydrogen & water are held together by ______ bond.

    A. Ionic
    B. Covalent
    C. Hydrogen
    D. Dating

    Submitted by: Aamir khan Hullio