Which of the following reaction produces hydrogen. | CHEMISTRY - PREPARATION OF DIHYDROGEN | SolveeIt | Solveeit

Today, August 18

Question

Which of the following reaction produces hydrogen.

A

$Mg + H_{2}O$

B

$BaO_{2} + HCl$

C

$H_{2}S_{4}O_{8} + H_{2}O$

D

$Na_{2}O_{2} + 2HCl$

Answer

$Mg + H_{2}O$

Explanation

Solution

$Mg + 2H_{2}O \rightarrow Mg(OH)_{2} + H_{2} \uparrow$