how to prepare hydrogen gas in laboratory
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Hydrogen can be made by reaction of any active metal like magnesium or zinc with a strong acid such as H2SO4 or HCl, for example,
Mg(s) + 2 HCl(aq) H2(g) + MgCl2(aq)
Since hydrogen gas is almost insoluble in water, it can be collected by displacement of water using an inverted bottle.Similar questions