Permissible limit of alkalinity in drinking water is a : 50mg/l b : 300mg/l c : 20-200mg/l d : 100mg/l
Adv.
c : 20-200mg/l
Alkalinity in waste water is useful because it provides buffering to resist changes in pH value. a : True b : False
Alkalinity can also be related to hardness because of presence of a : CaCO3 b : MgCO3 c : Na2CO3 d : K2CO3
Alkalinity is important in aquatic life because a : It helps water to remain warm b : It helps water to remain cold c : It buffers against rapid pH change d : None of the above
An alkalinity test measures the level of a : Carbonates only b : Hydroxides only c : Bicarbonates, carbonates, and hydroxides d : None of the above
Higher is the alkalinity in water easier it is for pH change. a : False b : True
Excessive alkalinity level in human body can a : Expel the unwanted pathogens in the bloodstream b : Cause skin irritations c : Lead to gastrointestinal issues d : All of the above
Data obtained from alkalinity is used for following engineering practices. a : Chemical coagulation of water and waste water b : Water softening c : Corrosion control d : All of the above
Majority of mineral water supplied is mostly a : Acidic b : Neutral c : Alkaline d : None of the above
Alkalinity measurements are used in the interpretation and control of waste water treatment process. a : False b : True
Why does the procedure call for a sample containing no more than 60 mg of Mg2+?
All Questions
Physics
Chemistry
Mathematics
English
Organic Chemistry
Inorganic Chemistry
Physical Chemistry
Algebra
Geometry