Question:
Which among the following statements is true for Galvanic cell?
Which among the following statements is true for Galvanic cell?
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“Galvanic” = spontaneous = chemical to electrical. Anode = oxidation = negative (think: Anode → “A” for oxidation, negative because electrons leave).
Updated On: Jun 4, 2026
- The anode is negative and cathode is positive.
- Electrical energy is converted into chemical energy.
- The anode is positive and cathode is negative.
- Oxidation takes place at positive electrode and reduction takes place at negative electrode.
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Question:
We must identify the correct characteristic of a galvanic (voltaic) cell, which generates electrical energy from spontaneous chemical reactions.
Step 2: Key Formula or Approach:
Recall the conventions: In a galvanic cell, oxidation occurs at the anode (negative terminal) and reduction at the cathode (positive terminal). Electrons flow from anode to cathode through the external circuit.
Step 3: Detailed Explanation:
- Option (A): Correct – Anode is negative (electrons are produced) and cathode is positive (electrons are consumed).
- Option (B): Incorrect – In a galvanic cell, chemical energy is converted to electrical energy; the opposite (electrical to chemical) occurs in an electrolytic cell.
- Option (C): Incorrect – This describes an electrolytic cell, not a galvanic cell.
- Option (D): Incorrect – Oxidation occurs at the anode (negative electrode in galvanic cell), reduction at the cathode (positive electrode).
Step 4: Final Answer:
The true statement is option (A).
We must identify the correct characteristic of a galvanic (voltaic) cell, which generates electrical energy from spontaneous chemical reactions.
Step 2: Key Formula or Approach:
Recall the conventions: In a galvanic cell, oxidation occurs at the anode (negative terminal) and reduction at the cathode (positive terminal). Electrons flow from anode to cathode through the external circuit.
Step 3: Detailed Explanation:
- Option (A): Correct – Anode is negative (electrons are produced) and cathode is positive (electrons are consumed).
- Option (B): Incorrect – In a galvanic cell, chemical energy is converted to electrical energy; the opposite (electrical to chemical) occurs in an electrolytic cell.
- Option (C): Incorrect – This describes an electrolytic cell, not a galvanic cell.
- Option (D): Incorrect – Oxidation occurs at the anode (negative electrode in galvanic cell), reduction at the cathode (positive electrode).
Step 4: Final Answer:
The true statement is option (A).
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