1.

In the Following reaction using isotope `""^(18)O` in `H_(2)O_(2)`. `2MnO_(4)^(-) + 3H_(2)O_(2)^(18) to 2MnO_(2) + 3O_(2) + 2H_(2)O + 2OH^(-)` Isotopic oxygen goes :A. both in `O_(2)`B. both in `MnO_(2)`C. both in `OH^(-)`D. One in `O_(2)` and one in `MnO_(2)`

Answer» Correct Answer - A
`H_(2)""^(18)O_(2) (aq) + 2OH^(-) (aq) to 2H_(2)O (l) + ""^(18)O_(2) (g) + 2e^(-)`
So, all the `""^(18)O` label appers in `""_(18)O_(2)`


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