Question

Hydrogen cannot be produced from alkalis by chemical reaction.

• A. True
• B. False

Answer 1

The correct option is B False

• Alkali and alkaline earth metals react with water to produce hydrogen gas and a metal hydroxide.
• This is due to their high electropositive character.
  ​ ${\mathrm{Mg}}_{\left(\mathrm{s}\right)+}{\mathrm{H}}_2{\mathrm{O}}_{\left(\mathrm{aqu}\right)\to }\mathrm{Mg}{{\left(\mathrm{OH}\right)}_2}_{\left(\mathrm{s}\right)}+{\mathrm{H}}_{2_{\left(\mathrm{g}\right)}}$
• Therefore, the hydrogen cannot be produced from alkalis by chemical reaction is a false statement.