A) Nitrogen
B) Chlorine
C) Carbon
D) Oxygen
Correct Answer: B
Solution :
Photolysis of water is the phenomenon, which is associated with pigment system-II and are catalysed by the presence of \[M{{n}^{2+}}\] and \[C{{l}^{-}}\] ions. When photosystem is active the water molecules split into \[O{{H}^{-}}\] and \[{{H}^{+}}\] ions. The OH- ions unite to form water molecules again and release O2 and electron. \[\text{4}{{\text{H}}_{\text{2}}}\text{O}\,\,\rightleftharpoons {{\text{H}}^{\text{+}}}\text{4O}{{\text{H}}^{\text{-}}}\]\[\text{4}{{\text{H}}^{-}}\xrightarrow[M{{n}^{2+}},C{{l}^{-}}]{Z-complex}\,2{{\text{H}}_{2}}O\,+\,{{O}_{2}}\,\uparrow \,+4{{e}^{-}}\]
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