How many methods of removing the radio active impurities are there?
a) 2 b) 3 c) 3 d) 4
Applied Chemistry
The treatment of water with _________ improves the taste of water
a) Oxygen b) Chlorine c) KMnO4 d) Ozone
Reacting the water with _________ removes the odour due to the phenols
a) KMnO4 b) MnO4 c) Potassium d) Magnesium
__________ imparts peculiar odour to the water
a) Decaying organic matter b) Detergents c) Phenols d) Dissolved oxygen
The unpleasant odour of the water is due to presence of the __________
a) Nitrogen b) Bismuth c) Phenols d) Dissolved oxygen
Dried sludge can be used as _________
a) Fertilizer b) Pesticide c) Reagent d) Medicine