Chemistry – Electrochemistry

1. What is the direction of current flow in a galvanic cell?

  1. From the positive electrode to the negative electrode
  2. From the negative electrode to the positive electrode
  3. Same as the direction of electrons
  4. Circular direction
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Answer: Option A. From the positive electrode to the negative electrode

2. What is the name of the device that converts chemical energy into electrical energy from spontaneous redox reactions?

  1. Electrolytic cell
  2. Transformer
  3. Galvanic cell
  4. Fuel cell
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Answer: Option C. Galvanic cell

3. What do we call the potential of a galvanic cell when no current is drawn?

  1. Short circuit voltage
  2. Electromotive force
  3. Internal resistance
  4. Load resistance
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Answer: Option B. Electromotive force

4. In a Galvanic cell, where does oxidation occur?

  1. Anode
  2. Cathode
  3. Battery terminal
  4. Electrolyte
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Answer: Option A. Anode

5. What is the name of the device that uses electrical energy to drive non-spontaneous chemical reactions?

  1. Capacitor
  2. Galvanic cell
  3. Daniell cell
  4. Electrolytic cell
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Answer: Option D. Electrolytic cell