Using carbon electrodes, four cells were set up to investigate the electrical conductivity of four substances.
A contains powdered NaCl.
B contains sugar solution.
C contains molten lead.
D contains molten sulphur.
In which cell will the bulb light up?

Is it C?

Question

Using carbon electrodes, four cells were set up to investigate the electrical conductivity of four substances. 
A contains powdered NaCl. 
B contains sugar solution. 
C contains molten lead. 
D contains molten sulphur. 
In which cell will the bulb light up? 

Is it C?

anonymous · Answer

yes it is, coz it contains ions

anonymous · Answer

Molten lead doesnot contain ions. It conducts electricity due to the presence of free delocalised electrons.