The table shows the electrical conductivities of two compounds, Y and Z. - conductivity of the compound in the liquid state: Y good, Z does not conduct - conductivity of the mixture formed when the compound is added to water: Y good, Z good Which compounds could Y and Z be?
- AY: $\text{Al}_2\text{O}_3$, Z: $\text{SiCl}_4$
- BY: $\text{NaF}$, Z: $\text{Al}_2\text{O}_3$
- CY: $\text{NaF}$, Z: $\text{SiCl}_4$
- DY: $\text{SiCl}_4$, Z: $\text{Al}_2\text{O}_3$