Statement I: The substances whose resistance reduces nearly to zero are called superconductors. Stat — Solid State Chemistry Question
Question
Statement I: The substances whose resistance reduces nearly to zero are called superconductors. Statement II: Superconductors are diamagnetic substances.
Answer: B
💡 Solution & Explanation
Statement I is correct: superconductors have zero electrical resistance below a critical transition temperature. Statement II is correct: because of the Meissner effect, superconductors expel magnetic fields and behave as perfect diamagnets. However, Statement II is a property and does not explain why the electrical resistance drops to zero.
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