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NEET Chemistry NEET PYQ-The Solid State

  • question_answer
    With which one of the following elements silicon should be doped so as to give p-type of semiconductor?                            [AIPMT (S) 2008]

    A) Germanium

    B) Arsenic

    C) Selenium

    D) Boron

    Correct Answer: D

    Solution :

    [d] The n-type semiconductors are obtained when Si or Ge are doped with elements of group 15, eg, arsenic (As), while p-type semiconductors are obtained when Si or Ge are doped with traces of elements of group 13, ie, indium (In), boron .
    Note: The conductivity of semiconductors increases with rise in temperature.


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