Question

What happens when zinc granules are heated with sodium hydroxide solution? Write the equation of the reaction which takes place.

Answer 1

When sodium hydroxide solution is heated with zinc, then sodium zincate and hydrogen gas are formed.

\[\ce{\underset{(Base)}{\underset{Sodium hydroxide}{2NaOH_{(aq)}}} + \underset{Zinc}{Zn_{(s)}} ->[Heat] \underset{(Salt)}{\underset{Sodium zincate}{Na2ZnO2_{(aq)}}} + \underset{Hydrogen}{H2_{(g)}}}\]