Which of these compounds would be the best

conductor in the pure liquid (molten) state?

1. H2Te

2. KBr

3. Br2

4. PCl3

5. NH3

6. GeH4

7. methane (CH4)

8. H2Se

9. water (H2O)

10. H2S

2. KBr (it is the only ionic compound)

An ionic compound is able to conduct electricity in liquid state because the ions dissociate in water (meaning they are mobile and able to pass current through it)

Covalent compounds cannot conduct in solid and liquid states.