Home
Class 12
CHEMISTRY
Addition of group-13 elements to intrins...

Addition of group-13 elements to intrinsic semiconductors result in-

A

creation of conduction band slightly above the valence band

B

creation of conduction band slightly below the valence band

C

creation of valence band slightly above the conduction band

D

overlapping of valence band and conduction band

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • SOLID STATE

    CHHAYA PUBLICATION|Exercise SOLVED NCERT EXEMPLAR PROBLEMS|53 Videos
  • SOLID STATE

    CHHAYA PUBLICATION|Exercise SHORT ANSWER TYPE|10 Videos
  • SOLID STATE

    CHHAYA PUBLICATION|Exercise ADVANCED LEVEL NUMERICAL BANK|17 Videos
  • PREVIOUS YEARS QUESTION PAPER 2019

    CHHAYA PUBLICATION|Exercise WBCHSE 2019 PART-B|19 Videos
  • SOME p-BLOCK ELEMENTS

    CHHAYA PUBLICATION|Exercise PRACTIVE SET 11|15 Videos

Similar Questions

Explore conceptually related problems

Give the general valence shell electronic configuration of group-13 elements. What is their common oxidation state?

If a pentavalent element is doped in an intrinsic semiconductor then

A group-14 element is to be converted into n-type semiconductor by doping it with a suitalbe impurity. To which group this impurity belong?

A group 14 element is to be converted into n-type semiconductor by doping it with a suitable impurity. To which group should this impurity belong?

(a) On raising the temperature, electrical conductivity of a metal decreases, while that of a semiconductor increases. Explain. (b) At very low temperature (0K), intrinsic semiconductors behave like insulators but their electrical conductivities increase with rise in temperature. Why?

Which group - 15 elements is radioctive ?

Explain why the tendency of group-15 elements to exhibit- 3 oxidation state decreases as we moue down the group.

Which of the group-13 elements is used in thermometers for recording high temperatures and why?

The number of negative charge carrier in an intrinsic semiconductor is n. What is -the number of positive charge carrier of it?

CHHAYA PUBLICATION-SOLID STATE-ENTRANCE QUESTION BANK
  1. In calcium fluoride, having the fluorite structure, the coordination n...

    Text Solution

    |

  2. The ionic radii of A^(+)andB^(-) ions are 0.98xx10^(-10)m and 1.81xx10...

    Text Solution

    |

  3. Lithium has bcc structure. Its density is 530kg*m^(-3) and its atomic ...

    Text Solution

    |

  4. Which is the incorrect statement-

    Text Solution

    |

  5. Iron exhibits bcc structure at room temperature. Above 900^(@)C, it tr...

    Text Solution

    |

  6. Schottky defect is-

    Text Solution

    |

  7. CsCl has bcc arrangement. Its unit cell edge length is 400 pm. Its int...

    Text Solution

    |

  8. If Si is doped with B-

    Text Solution

    |

  9. In bcc structure contribution of corner and central atom is-

    Text Solution

    |

  10. In a solid, atom M occupies ccp lattice and 1/3rd of tetrahedral voids...

    Text Solution

    |

  11. A forms hcp lattice and B are occupying 1/3rd of tetrahedral voids, th...

    Text Solution

    |

  12. Ca^(2+)andF^(-) are located in CaF(2) crystal, respectively at face-ce...

    Text Solution

    |

  13. Addition of group-13 elements to intrinsic semiconductors result in-

    Text Solution

    |

  14. The yellow colour in NaCl crystals is due to-

    Text Solution

    |

  15. Which of the following is an amorphous solid-

    Text Solution

    |

  16. If an atom crystallises in bcc lattice with r = 4Å then the edge lengt...

    Text Solution

    |

  17. ZnO is white when cold and yellow when heated. It is due to the develo...

    Text Solution

    |

  18. A forms hcp lattice and B are occupying 1/3rd of tetrahedral voids, th...

    Text Solution

    |

  19. F-centre is-

    Text Solution

    |

  20. What colour is observed when ZnO is heated-

    Text Solution

    |