Which of the following energy sources is used in electrolysis to convert energy?

• A. Chemical
• B. Solar
• C. Thermal
• D. Wind

Answer: (A)

In electrolysis, energy is used to drive a non-spontaneous chemical reaction, where an electric current is passed through an electrolyte solution to induce a chemical change. The process primarily relies on electrical energy, which is often derived from chemical energy stored in the substances involved in the reaction. This is particularly notable in scenarios where electrolysis is used to break down compounds like water into hydrogen and oxygen gas.

Chemical energy refers to the energy stored in the bonds of chemical compounds. During electrolysis, when an electric current is applied to the electrolyte, it causes the chemical bonds to break, thus converting that stored chemical energy into a different form.

This is why chemical energy is the correct answer in this context. In contrast, solar, thermal, and wind options pertain to forms of energy conversion that are not directly linked to the core principles governing electrolysis, making them less relevant to the fundamental operation of the electrolysis process.