Question

Which of the following is a strong electrolyte?

• A. $Ca{\left({NO}_3\right)}_2$
• B. HCN
• C. $H_2{SO}_3$
• D. ${NH}_{4}OH$

Answer 1

The correct option is A $Ca{\left({NO}_3\right)}_2$

A solute/ solution that completely ionizes or dissociates in a solution is called as strong electrolyte. Here $Ca(N{O}_3{)}_2$ is a strong electrolyte, as it completely dissociates into $C{a}^{2+}$ and $N{O}_3^{-}$ ions in an aqueous solution.