To conduct electricity through ionic solid, ions should be:
Correct answer: C. Free
- A. Excited
- B. Energized
- C. Free
- D. In random motion
Explanation
In an ionic solid, ions are held together by strong electrostatic forces, making them immobile and unable to conduct electricity in the solid state. However, when the ionic solid is melted or dissolved in water, the ions are no longer bound in a rigid lattice and become free to move. This freedom of movement allows the ions to carry electrical charge, enabling the conduction of electricity. Therefore, the correct answer is that ions should be free in order to conduct electricity. The other options-excited, energized, and in random motion-do not necessarily imply that ions can move freely in a manner that supports electrical conduction.
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Electrochemistry describes electron transfer through oxidation and reduction, identifies oxidizing and reducing agents, and applies oxidation numbers to balance redox equations. It also covers electrode potential and the standard hydrogen electrode, which provides the reference for comparing the reduction tendencies of other electrodes.
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