In the reaction : `Cl_2 + OH^(-) rarr Cl^(-) +ClO_(4)^(-) +H_(2)O` chlorine is :

The values of X and Y in the following redox reaction are XCl_(2) +6OH rarr ClO_3^(-) +YCl^(-) +3H_(2)O

(1) Chlorine forms number of oxides such as Cl_(2)O , ClO_(2), Cl_(2) O_(7) chlorine and oxygen donot combine together directly. So, these are prepared by indirect method. HgO. Hgo + Cl_(2) rarr Cl_(2)O + Hg , (2) Some of these oxides undergo disproportionation reactions. For Ex : Cl_(2) O_(6) + 2KOH rarr KClO_(3) + KClO_(4) + H_(2)O ( 3) The oxides of chlrine are acidic in nature. Cl_(2)O_(7) is the anhydride of perchloric acid Cl_(2) O_(7) + H_(2) O rarr 2HClO_(4) Which of the given statement is incorrect

(1) Chlorine forms number of oxides such as Cl_(2)O , ClO_(2), Cl_(2) O_(7) chlorine and oxygen donot combine together directly. So, these are prepared by indirect method. HgO. Hgo + Cl_(2) rarr Cl_(2)O + Hg , (2) Some of these oxides undergo disproportionation reactions. For Ex : Cl_(2) O_(6) + 2KOH rarr KClO_(3) + KClO_(4) + H_(2)O ( 3) The oxides of chlrine are acidic in nature. Cl_(2)O_(7) is the anhydride of perchloric acid Cl_(2) O_(7) + H_(2) O rarr 2HClO_(4) Euochlorine is a mixture prepared by heating KClO_(3 with con HCl euchlorine is a mixture of

3Cl_(2)+6NaOHrarr5NaCl+NaClO_(3)+3H_(2)O , chlorine gets

Ozone layer acts as one of the most important life support system. The major cause of ozone layer destruction is believed to be the release of chlorofluorocarbon compounds. UV radiation causes the chlorofluouocarbons to dissociate : CF_(2) Cl overset(hv)(rarr) Cl* +CF_(2) CI A highly reactive chlorine atomis responsible for the decomposition of ozone. Cl* + O_(3) (g) rarr ClO* + O_(2) (g) ClO* + O(g) rarr Cl* + O_(2) (g) Free radicals of chlorine decompose ozone molecules in a chain reaction. The depletion of ozone layer leading to ozone hole has, however, been mainly observed in the stratosphere over Antarctica. Special type of cloud called polar stratospheric colouds are formed over Antarctica.These clouds (contain solid HNO_(3).3H_(2)O ) play an important role in ozone depletion. ClO* + NO_(2) rarr ClONO_(2) ClONO_(2) + H_(2) O rarr HOCl + HNO_(3) ClONO_(2) + HCl rarr Cl_(2) + HNO_(3) HOCl overset(hv)(rarr) HO* + Cl* The reactive chlorine atoms thus formed are rendered to deplete ozone layer. The ozone layer is present in :

Ozone layer acts as one of the most important life support system. The major cause of ozone layer destruction is believed to be the release of chlorofluorocarbon compounds. UV radiation causes the chlorofluouocarbons to dissociate : CF_(2) Cl overset(hv)(rarr) Cl* +CF_(2) CI A highly reactive chlorine atomis responsible for the decomposition of ozone. Cl* + O_(3) (g) rarr ClO* + O_(2) (g) ClO* + O(g) rarr Cl* + O_(2) (g) Free radicals of chlorine decompose ozone molecules in a chain reaction. The depletion of ozone layer leading to ozone hole has, however, been mainly observed in the stratosphere over Antarctica. Special type of cloud called polar stratospheric colouds are formed over Antarctica.These clouds (contain solid HNO_(3).3H_(2)O ) play an important role in ozone depletion. ClO* + NO_(2) rarr ClONO_(2) ClONO_(2) + H_(2) O rarr HOCl + HNO_(3) ClONO_(2) + HCl rarr Cl_(2) + HNO_(3) HOCl overset(hv)(rarr) HO* + Cl* The reactive chlorine atoms thus formed are rendered to deplete ozone layer. Peeling of ozone umbrella, which protects us from UV rays is caused by:

The eq. mass of Na_(2)S_(2)O_3 as reductant in the reaction, Na_(2) S_(2) O_2 + H_(2)O + Cl_(2) rarrNa_(2) SO_(4) + 2HCl is