3. Which of the following does not belong in the category of electrochemical cells? a) Voltaic cell b) Photovoltaic cell c) Electrolytic cell d) Fuel Cell
Answer: b Explanation: A voltaic cell, also known as a galvanic cell, is an electrochemical cell that transforms chemical energy to electrical energy. Light energy is converted into electrical energy using photovoltaic cells. An electrolytic cell turns electrical energy into chemical energy and is a type of electrochemical cell. An electrochemical cell that converts the chemical energy of a fuel and an oxidizing agent into electricity is known as a fuel cell.