6. Iron and manganese present as pollutants in water cannot be removed by________ A.Oxidation followed by settling and filtration B.Chlorination C.Ion exchange process D.Lime soda process or manganese zeolite process
Answer: Option B Solution: Water chlorination is the process of adding chlorine or hypochlorite to water. This method is used to kill certain bacteria and other microbes in tap water as chlorine is highly toxic. In particular, chlorination is used to prevent the spread of waterborne diseases such as cholera, dysentery, typhoid etc.
