NCERT · Class 12 · Chemistry · ElectrochemistryThe standard reduction potentials of three metals X, Y, and Z are -1.2 V, +0.5 V, and -3.0 V respectively. The reducing power of these metals will be in the order:
Step-by-Step Solution
The correct option is Z > X > Y. Reducing power is inversely proportional to standard reduction potential ($E^0$). A more negative $E^0$ value means a stronger reducing agent. Given values: $E^0(Z) = -3.0$ V, $E^0(X) = -1.2$ V, $E^0(Y) = +0.5$ V. Therefore, the reducing power order is Z > X > Y.
Detailed Options Breakdown
Option : X > Y > Z
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electrochemistry.
Option 1: Y > X > Z
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electrochemistry.
Option 2: Z > X > Y (Correct Answer)
Correct choice. Refer to the step-by-step verified solution guidelines above for details.
Option 3: X > Z > Y
Incorrect choice. This distractor represents a common misunderstanding of the core principles of Electrochemistry.
💡 Study Guide: This question tests core syllabus concepts from Electrochemistry. For formulas, key summaries, and mock exam reference guides, read the full Electrochemistry Revision Notes.