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Q.

The element that can be used as an acceptor impurity to doped silicon is

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a

Boron

b

Phosphorous

c

Arsenic

d

Antimony

answer is C.

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Detailed Solution

Boron or gallium is used as dopant for the p-type doping. Atom of these elements have three valence electrons. A covalent bond is formed between these three electrons with neighboring silicon atoms.Boron is a 13th group element and has one less electron and can act as an acceptor impurity to silicon.

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