A. Bacterial growth
B. Taste and odour
C. Turbidity
D. None of these
The main use of activated carbon in water treatment is to control ___________________? Read More »
Chemical Process A. Osmosis
B. Reverse osmosis
C. Absorption
D. Adsorption
Separation of fresh water from sea water can be done by the _______________ operation ? Read More »
Chemical Process A. High cost
B. Fragile nature
C. Easy poisoning tendency
D. All A, B. and C.
A. Reduced softening capacity of zeolite
B. Increased dosage of chlorine to provide a disinfecting residual in the water
C. Easy removal of its hardness
D. None of these
Presence of H2S in raw water (to be chlorinated) results in the_____________________? Read More »
Chemical Process A. Quartz
B. Galena
C. Siderite
D. Chalcopyrite
______________ is an ore of lead? Read More »
Chemical Process A. Iron-steam reaction
B. Electrolysis of water
C. Steam reforming of naphtha
D. Its cryogenic separation from coke oven gas
A. Lime
B. Sulphuric acid
C. Chlorine
D. Sodium bisulphite
A. Magnesium & potassium compounds
B. Common salt
C. Bromine
D. Iodine
Which of the following is not produced commercially from sea water ? Read More »
Chemical Process A. SO2
B. H2SO4
C. SO3
D. SO2 + H2SO4
Oleum produces fumes of_____________________? Read More »
Chemical Process A. Pyrolysis of oil
B. Sintering of porous catalyst
C. Hydrogen embrittlement
D. All A, B. and C.
