1.

Which of the following is a decomposition reaction as well redoc reaction?

Answer»

`2KBr+Cl_(2)to2KCl+Br_(2)`
`2Na+H_(2)Oto2NaOH+H_(2)`
`2MgOto2Mg+O_(2)`
`ZnCO_(3)toZnO+CO_(2)`

Solution :In `2mgOto2Mg+O_(2)` there is a decompositon of MgO into its CONSTITUENT ELEMENTS. SINCE there is a loss of oxygen from `MgO`, the reaction is a redox reaction.


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