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Which of the following reactions produce...

Which of the following reactions produces hydrogen-

A

Mg + `H_(2)O`

B

`H_(2)S_(2)O_(8) + H_(2)`O

C

`"BaO"_(2) + " HCl"`

D

`Na_(2)O_(2) +` 2 HCl

Text Solution

Verified by Experts

Alkali and alkaline earth metals react with water to produce hydrogen gas and metal hydroxides. This occurs due to high electropositive character of the metals.
Mg + `2H_(2)O rarr Mg (OH)_(2) + H_(2)`
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