Question

Which of the following dissolves in water to form an ionic solution?

• A. $O_2$
• B. $Si{O}_2$
• C. $KMn{O}_4$
• D. $C_{12}{H}_{22}{O}_{11}$

Answer 1

Answer: (C)

$KMn{O}_4$

$KMn{O}_4$ is an electrolyte. It dissociates in solution to form ions. Hence, it will dissolve in water to form an ionic solution.

On the other hand, $O_2$,$Si{O}_2$ and $C_{12}{H}_{22}{O}_{11}$ are non electrolytes.

They do not dissociate into ions.

Hence, they will dissolve in water to produce molecular solutions.

Option C is correct.