The most commonly used chemical coagulant in water treatment is________________?

Related Mcqs:

1. The amount of chemical coagulant added for treatment of polluted water ______________ with increase in temperature of the polluted water to be treated?

   A. Decreases B. Increases C. Remain constant D. May increase or decrease; depends on the chemical characteristics of polluted water...

2. Which is the most widely used coagulant for the treatment of turbid water ?

   A. Alum (aluminium sulphate) B. Lime C. Ferric chloride D. Sodium aluminate...

3. Chemical potential (an intensive property) of a substance is a force that drives the chemical system to equilibrium and is equal to its partial molar properties. The ratio of chemical potential to free energy of a pure substance at constant temperature and pressure is________________?

   A. 0 B. 1 C. ∞ D. None of these...

4. Pick out the one which is not a chemical coagulant ?

   A. Aluminium sulphate B. Ferrous sulphate C. Hydrated lime D. Chloramine...

5. At equilibrium condition, the chemical potential of a material in different phases in contact with each other is equal. The chemical potential for a real gas (μ) is given by (where, μ = standard chemical potential at unit fugacity (f° = 1 atm.) and the gas behaves ideally.) ?

   A. μ° + RT ln f B. μ°+ R ln f C. μ° + T ln f D. μ° + R/T ln f...

6. During sewage treatment, the sewage is subjected to ______________ treatment in Imhoff tank?

   A. Filtration B. Digestion C. Sedimentation D. Both B. and C....

7. In sewage treatment, its sedimentation is speeded up by commonly adding__________________?

   A. Hydrochloric acid B. Lime C. Copper sulphate D. Sodium sulphate...

8. Irradiation of water by ultraviolet light of suitable wavelength is commonly used for disinfection of water in___________________?

   A. Food industry B. Municipal sewage treatment C. Petroleum refinery D. Iron & steel plant...

9. In water treatment plant, zeolite process is used to remove the _____________ of water?

   A. Acidity B. Alkalinity C. Hardness D. Iron & zinc...

10. Chemical engineering thermodynamics is concerned with the ____________ in/of chemical processes?

    A. Reaction mechanism B. Calculation of rates C. Energy transformation from one form to another D. None of these...