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Arsenic is used to dope germanium to obt...

Arsenic is used to dope germanium to obtain

A

n - type semiconductor

B

p - type semiconductor

C

germanium arsenide

D

a superconducting alloy

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The correct Answer is:
A
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NTA MOCK TESTS-NTA NEET SET 76-CHEMISTRY
  1. The number of iodine atoms present in 1 cm^3 of its 0.1 M solution is

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  2. The reaction of RCN with R'MgX, followed by hydrolysis gives

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  3. Arsenic is used to dope germanium to obtain

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  4. The following are some of the methods commonly employed for the extrac...

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  5. Which of the following statement is false for alkali metals ?

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  6. The measured voltage of the cell, Pt(s)|H2(1.0"atm")|H^+(aq)||Ag^+(1.0...

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  7. At 90^(@)C , pure water has [H(3)O^(+)] as 10^(-6) mol L^(-1). What is...

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  8. Which one of the following is a polyhdrocarbon ?

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  9. If the sequence of bases in one strand of DNA is ATGACTGTC then the se...

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  10. The Brownian motion is due to :

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  11. The activation energy of a reaction is zero. The rate constant of the ...

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  12. Fluorobenzene is prepared conveniently

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  13. Give (a) conjugate acid (b) conjugate base of HO(CH(2))(3)NH(2)

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  14. …………is a low spin complex.

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  15. Which of the following statement is incorrect regarding positive devia...

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  16. Which of the following does not reflect periodicity of elements ?

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  17. The reaction of benzoyl chloride with phenol in presence of NaOH is ca...

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  18. Which of the following statements about RNA is not correct?

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  19. Which one of the following statements is wrong about zinc blende type ...

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  20. Pick out the incorrect statement regarding H2O2.

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