NEET Sample Paper NEET Sample Test Paper-9

  • question_answer Which one of the following statements is wrong?

    A)  The conductivity of metals decreases with increase in temperature.

    B)  The conductivity of semiconductors increases with increase in temperature.

    C)  There is no superconductor at room temperature.

    D)  Ionic solids conduct electricity due to presence of ions.

    Correct Answer: D

    Solution :

    Ionic solids conduct electricity not due to presence of ions but due to presence of defects.

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