1.

Which of the following reaction produces hydrogen

Answer»

`MG+H_2O`
`BaO_2 + HCL`
`H_2S_4O_8 + H_2O`
`Na_2O_2 + 2HCL`

Solution :`Mg+2H_2O to Mg(OH)_2 + H_2 UARR`


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