Search
.Management Sciences
A. Alum (aluminium sulphate)
B. Lime
C. Ferric chloride
D. Sodium aluminate
Related Mcqs:
- The effect of increase in carbon dioxide level of the atmosphere and its profound effect on our climate is called the ________________?
- A. Catalytic conversion B. Green house effect C. Global warming D. Both B. and C....
- Which of the following pollutants, if present in atmosphere is detectable by its odour ?
- A. CO B. SO2 C. NO2 D. CO2...
- Brown spots in fabrics will be caused by washing with water containing large amount of___________________?
- A. Iron B. Zinc C. Iodine D. Bromine...
- Which of the following is the most efficient for removal of very finely divided suspended solids and colloidal matter from the polluted water stream ?
- A. Sedimentation tank B. Circular clarifier C. Mechanical flocculation D. Chemical coagulation...
- Fluorosis (a bone disease) is caused by the presence of high concentration of ____________ in atmospheric air?
- A. Hydrocarbons B. Hydrogen fluoride C. Hydrogen sulphides D. Nitrogen dioxide...
Recent Comments