Answer: Negative electrode.
- A Positive electrode
- B Negative electrode
- C Where reduction occurs
- D Where oxygen forms
Correct answer: B. Negative electrode
Explanation: In a galvanic cell, the anode is negative and undergoes oxidation (loss of electrons).
In a Daniell cell, electrons flow externally from the zinc anode (oxidation) through the voltmeter to the copper cathode (reduction), while the salt bridge completes the circuit.
Concept context
Explore the link between chemical reactions and electricity. Covers galvanic cells, electrolysis, standard electrode potentials, the Nernst equation, and real-world applications like batteries and corrosion.