Question

The reaction of granulated Zinc with dilute $\mathrm{HCl}$ results in the formation of___________

Answer 1

Single displacement reaction:

1. Zinc granules are the solid crystals of zinc. They interact fast with acids to produce hydrogen gas.
2. It is a single displacement reaction in which zinc replaces hydrogen and produces hydrogen gas and zinc chloride as a salt.$\underset{\mathrm{Zinc}}{\mathrm{Zn}\left(\mathrm{s}\right)}+\underset{\mathrm{Hydrochloric}\mathrm{acid}}{\mathrm{HCl}\left(\mathrm{aq}\right)}\to \underset{\mathrm{Zinc}\mathrm{chloride}}{{\mathrm{ZnCl}}_2\left(\mathrm{aq}\right)}+\underset{\mathrm{Hydrogen}\mathrm{gas}}{{\mathrm{H}}_2\left(\mathrm{g}\right)}$
3. The reaction is exothermic in nature i.e. it will release heat.
4. Zinc chloride formed is crystalline, colorless, and soluble in water.
5. The hydrogen gas produced is colorless and odorless.

Therefore, The reaction of granulated Zinc with dilute $\mathrm{HCl}$ results in the formation of dihydrogen.