A) 1.0
B) 1.5
C) 2.5
D) 3.5
E) 5.0
Correct Answer: C
Solution :
\[Cl{{O}_{2}}\to C{{l}^{-}}\] \[Cl{{O}_{2}}+2{{H}_{2}}O+5e\to C{{l}^{-}}+4O{{H}^{-}}\] \[{{H}_{2}}{{O}_{2}}\to {{O}_{2}}\] \[{{H}_{2}}{{O}_{2}}+2O{{H}^{-}}\to {{O}_{2}}+2{{H}_{2}}O+2e\] \[Cl{{O}_{2}}+2{{H}_{2}}O+5e\to C{{l}^{-}}+4O{{H}^{-}}]\times 2\] \[{{H}_{2}}{{O}_{2}}+2O{{H}^{-}}\to {{O}_{2}}+2{{H}_{2}}O+2e]\times 2\] \[2Cl{{O}_{2}}+5{{H}_{2}}{{O}_{2}}+2O{{H}^{-}}\to 2C{{l}^{-}}+5{{O}_{2}}+5{{H}_{2}}O\] \[2Cl{{O}_{2}}\equiv 5{{H}_{2}}{{O}_{2}}\] \[\therefore \] \[Cl{{O}_{2}}=2.5{{H}_{2}}{{O}_{2}}\]
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