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Question 29

Which statement gives the careful school-level rule for electrical conduction by nonmetals?

  1. Every nonmetal is a perfect conductor.
  2. Every nonmetal is an absolute insulator.
  3. Graphite must therefore be a metal.
  4. Most conduct poorly, but graphite is a familiar exception.Correct answer

Explanation

Poor electrical conduction is the usual nonmetal pattern, while graphite can conduct and is a familiar exception. An exception does not turn graphite into a metal, and it makes an absolute claim about all nonmetals untenable.

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Question 29: Which statement gives the careful school-level rule for… · The Periodic Table and Elements · Questena