Home
Class 11
CHEMISTRY
Band gap in germanium is small. The en...

Band gap in germanium is small.
The energy spread of each germanium atomic energy level is infinitesimally small.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false

D

If assertion is false but reason is true.

Text Solution

Verified by Experts

The correct Answer is:
A
(a) Germanium, semi-conductor substance, has small hand gap in comparison to insulator (non-metal).
Promotional Banner

Topper's Solved these Questions

  • ATOMIC STRUCTURE

    A2Z|Exercise AIPMT/NEET Questions|59 Videos

  • ATOMIC STRUCTURE

    A2Z|Exercise AIIMS Questions|16 Videos

  • ATOMIC STRUCTURE

    A2Z|Exercise Quantum Numbers, Orbitial'S Shape, Electronic Configuration|91 Videos

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    A2Z|Exercise Section D - Chapter End Test|30 Videos

Similar Questions

Explore conceptually related problems

The energy band gap of Si is

The donor atoms have energy level

The energy band gap is maximum in –

The forbidden gap in the energy bands of germanium at room temperature is about

The energy band gap is maximum in

The band gap in Germanium and silicon in eV respectively is

A small impurity is added to germanium to get a n-type seiniconductor. This impurity is a

Assertion : The energy gap between the valence band and conduction band is greater in silicon than in germanium. Reason : Thermal energy produces fewer minority carriers in silicon than in germanium.

A2Z-ATOMIC STRUCTURE-Section B - Assertion Reasoning
  1. The free gaseous Cr atom has six unpaired electrons. Half-filled s-o...

    Text Solution

    |

  2. e//m ratio in case of anode ray experiment is different for different ...

    Text Solution

    |

  3. Band gap in germanium is small. The energy spread of each germanium ...

    Text Solution

    |

  4. Spectral line would not ne seen for a 2px - 2pz transition p-orbital...

    Text Solution

    |

  5. Transition of electron between px and py would not lead to an spectral...

    Text Solution

    |

  6. Number of sub-shell in a shell is equal to the number of shel. Accor...

    Text Solution

    |

  7. Electronic configuration of .23 V^(3+) ion is [Ar]^18 3 d^2 and not [A...

    Text Solution

    |

  8. Statement : Number of waves in an orbit of atom is equal to number of ...

    Text Solution

    |

  9. A triply ionized Be-atom has the same radius of 2^(nd) orbitas that of...

    Text Solution

    |

  10. Statement : wavelength of (I) line of Humphry series is more than (I) ...

    Text Solution

    |

  11. The magnetic moment of Mg-"atom" is more than K-"atom" as the former h...

    Text Solution

    |

  12. Statement : All s-orbitla in H-atom corresponds to a non-zero probabil...

    Text Solution

    |

  13. The location and momentum of an electron in an orbital are complementa...

    Text Solution

    |

  14. Statement : The 3p-orbital has higher energy level than 3s in He^(+) i...

    Text Solution

    |

  15. Assertion (A) : If the potential difference applied to an electron is...

    Text Solution

    |

  16. Statement : Specific charge of alpha-particles is twice to that of pr...

    Text Solution

    |

  17. Statement : d-orbital are five fold non-degenerate in presence of magn...

    Text Solution

    |

  18. Statement : electromangetic radiations will be emitted for the transti...

    Text Solution

    |

  19. Statement : The psi(640) represents an orbital . Explanation : The o...

    Text Solution

    |

  20. Statement : Monochromatic X-rays fall on lighter elements such as carb...

    Text Solution

    |