I don't know what exactly you mean with "pure energy". Electricity always involves movement of matter, usually electrons, but it may be other charged particles, too.
electricity was not invented it was discovered and it s a pure form of energy.
No. The only thing "in" a black hole is pure gravitational energy.
It doesn't conduct electricity if it is pure water as there are no flowing ions. But in un-pure water electricity can be conducted.
There might be some misconception in the question. Electricity is the flow of energy from translating of electrons. Electricity itself doesn't produce electrons. How an electron as mass emerged from pure energy would required a lot further research in particles physic for the answer.
no
Electricity is a form of energy.
No, there is no electricity in energy drinks.
solar energy for electricity, hydroelectric energy for electricity too
No, not pure oil.
There is no electricity 'in' energy drinks. Though electricity will have been used in the manufacture of them.
use electricity generators which generate electricity from candle energy
Electricity is a form of energy that can be converted into either potential energy, which is stored energy, or kinetic energy, which is energy of motion. The relationship between electricity and potential or kinetic energy is that electricity can be used to create or transfer these types of energy.