Chlorine is used to purify drinking water. Excess of Chlorine is harmful. The excess of Chlorine is removed by treating with sulphur dioxide. Present a balanced equation for this redox change taking place in water.

Give the equation for the reaction between 1-butene and chlorine water.

Water is often treated with chlorine to

Write balanced equations for the folliowing. Chlorine is passed into a solution of NaI in water.

Who am I? I am called antichlor and am used to remove excess chlorine from clothes when treated with bleaching powder.

Manganese dioxide oxidises hydrochloric acid to chlorine and gives manganous chloride and water.

Statement A: Chlorine kills harmful disease causing organisms present in waste water. Statement B: Aeration allows growth of microbes that break down wastes.

Magnesium is a valuable, light weight metal used as a structural material as well as in alloy hatteries and in chemical s . Although magnesium is plentiful in Earth s maire found in the sea water after sodium). There is about 1.3 8 of magnesium in every kilogram of se water. The process for obtaining magnesium from en water employs all three types of reaction Le precipitation, acid-base, and redox reactions Redox reaction takes place in the extraction of Mg :

Magnesium is a valuable, light weight metal used as a structural material as well as in all batteries and in chemical synthesis. Although magnesium is plentiful in carth crust, it is ma found in the sea water after sedium. There is about 1.38 of magnesium in every kilogram of water. The process for obtaining magnesium from se water employs all three types of reach le... precipitation acid-hase and redor racions. Redox reaction takes place in the extraction of Me

Which is true about the process Aeration ?(i) It is used for removal of bacteria in water.(ii) Chlorine is sent into the water for eradication of bacteria (iii) In this method water is pumped into the air(iv)Bacteria in this water get killed as a result of exposure of sun rays