Which of the following is a good conductor of electricity?

Question

Which of the following is a good conductor of electricity? (A) Diamond (B) Graphite (C) Coal (D) None of these

Tardigrade Admin · Accepted Answer

Because graphite has π-electrons which are delocalised over the whole sheet. The electrons are mobile and thus it conducts electricity along the sheet.

Q. Which of the following is a good conductor of electricity?

Diamond

Graphite

Coal

None of these

Because graphite has $π$ -electrons which are delocalised over the whole sheet. The electrons are mobile and thus it conducts electricity along the sheet.