1.

Which one is not an example of redox reaction ?

Answer»

`Cl_2+2H_2O +SO_2 rarr4H^+ +SO_4^(2-) +2Cl^-`
`CU^(2+) +Zn rarr Zn^(2+) +Cu`
`2H_(2) + O_(2) rarr 2H_2O`
`HCI + H_2O →H_3O^+ +CL^-`

ANSWER :D


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