When an electric current passes through a pure metallic conductor, whether solid or liquid.(1) There is chemical effect of electric current.(2) There is change in colour.(3) There is no chemical effect of electric current.(4) Both (1) & (2

Metals are materials that are low in electrical resistivity. What does it tells about the nature of metals as conductor?Group of answer choicesMetals are not good conductors.Metals are bad electrical conductors of current because it has a low electrical resistivity.Metals are bad electrical conductors of current because it has a high electrical conductivity.Metals are good electrical conductors of current because it has a high electrical conductivity.

To make a chemical cell, two metal electrodes are dipped in a salt or dilute acid solution and joined by a wire. What causes the electrical current?The flow of electrons from the more reactive metal to the less reactive metalThe formation of metal ions in the salt solutionThe flow of electrons from the less reactive metal to the more reactive metalThe loss of heat to the surroundings

Which one of the following is the reason why pure metals are good electrical conductors?The movement of delocalised electrons.The arrangement of metal atoms in layers.The strong force of attraction between metal ion and delocalised electron.The high melting and boiling points.

What does it mean if a substance conducts electricity?

Which description of current in a metal is correct