Question

Write any two chemical properties of acids. [3 MARKS]

Answer 1

Each point: 1.5 Mark

1. Reaction with metals –

Dilute acids like hydrochloric acid (HCl), sulphuric acid react with certain active metals to evolve hydrogen gas and form their metallic salt

$Zn+H_2{SO}_4$ $\to$ $Zn{SO}_4\left(aq\right)+H_2\left(g\right)$
2. Reaction with metallic oxide –

Metal oxides react with dilute acids to form salt and water.

${Na}_{2}O+{2HNO}_3$ $\to$ ${2NaNO}_3\left(aq\right)+H_{2}O\left(l\right)$