Answer: Oxidation.
- A Reduction
- B Oxidation
- C Neutralisation
- D Precipitation
Correct answer: B. Oxidation
Explanation: Oxidation (loss of electrons) always occurs at the anode in both electrolytic and galvanic cells.
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.