Concept:Graphite is used in electrolytic cells because it efficiently conducts electricity and resists chemical attack.
Explanation:Graphite’s structure contains many delocalised electrons that move freely, making it an excellent conductor of electricity.
In an electrolytic cell, current must flow through the electrodes; graphite provides this without reacting with the electrolyte.
It remains intact even when in contact with corrosive substances, unlike many metals.
Although graphite is soft and layered, the key reason for its use is its high electrical conductivity.
Answer:D. Graphite is a good conductor of electricity