Home
Class 12
CHEMISTRY
In a sample of H- atom electrons make tr...

In a sample of `H-` atom electrons make transition from `5^(th)` excited state to ground state, producing all possible types of photons, then number of lines in infrared region are

A

`4`

B

`5`

C

`6`

D

`3`

Text Solution

Verified by Experts

The correct Answer is:
C
Infrared lines =total lines -visible lines -UV lines `=(6(6-1))/(2)-4-5 =15-9=6`
`("visible lines" =4 6 rarr2, 5 rarr2, 4 rarr 2, 3 rarr 2)` " " `("UV lines" =5 6 rarr1, 5rarr 1, 4 rarr 1, 3 rarr 1, 2 rarr1)`
Promotional Banner

Topper's Solved these Questions

  • NUCLEAR CHEMISTRY

    RESONANCE|Exercise Exercise-2|25 Videos

  • NUCLEAR CHEMISTRY

    RESONANCE|Exercise Exercise-20|1 Videos

  • NUCLEAR CHEMISTRY

    RESONANCE|Exercise Exercise-1|47 Videos

  • NITROGEN CONTAINING COMPOUNDS

    RESONANCE|Exercise ORGANIC CHEMISTRY(Nitrogen containing Compounds)|30 Videos

  • P BLOCK ELEMENTS

    RESONANCE|Exercise PART -II|24 Videos

Similar Questions

Explore conceptually related problems

In a H- like sample electron makes transition from 4th excited state of 2nd state then:

In a sample of H-atoms electrons are de-exicited from 4^(th) excited state to ground state. Which is/are correct statement ?

In a single isolated atom an electron make transition from 5th excited state to 2nd state then maximum number of different types of photons observed is

If electron make transition from 7^(th) excited state to 2^(nd) state in H atom sample find the max. number of spectral lines observed.

As an electron makes a transition from an excited state to the ground state of a hydrogen - like atom //ion

As an electron makes a transition from an excited state to the ground state of hydrogen-like atom // ion:

If an electron of hydrogen atom moves from fourth excited state to ground state in Lyman series find the total number of spectral lines?

In sample of hydrogen atoms in ground state, electron make transition from ground state to particular excited state, where path length is four times of debroglie wavelenght . Electrons make back transition to the ground state prouducing all possible photons. Ve,cocity of electron in fianal excited dtate in the above sample of hydrogen atom is

RESONANCE-NUCLEAR CHEMISTRY-PART -II
  1. Which is the correct relationship? (a). E(1) of H=1//2E(2) of He^(+)=1...

    Text Solution

    |

  2. If the value of E=-78.4 "kcal//mol", the order of the orbit in hydroge...

    Text Solution

    |

  3. If velocity of an electron in I orbit of H atom is V, what will be the...

    Text Solution

    |

  4. In a certain electronic transition in the hydrogen atoms from an init...

    Text Solution

    |

  5. S(1) : Bohr model is applicable for Be^(2+) ion . S(2) : Total ener...

    Text Solution

    |

  6. S(1) : Potential energy of the two opposite charge system increase wit...

    Text Solution

    |

  7. The energy of a hydrogen atom in its ground state is -13.6 eV. The ene...

    Text Solution

    |

  8. The wavelength of a spectral life for an electronic transition inverse...

    Text Solution

    |

  9. In a sample of H- atom electrons make transition from 5^(th) excited ...

    Text Solution

    |

  10. Total no of lines in Lyman series of H spectrum will be- (where n=n...

    Text Solution

    |

  11. Number of visible lines when an electron returns from 5th orbit to gro...

    Text Solution

    |

  12. Suppose that a hypothetical atom gives a red, green, blue and violet l...

    Text Solution

    |

  13. The difference between the wave number of 1st line of Balmer series an...

    Text Solution

    |

  14. The approximate wavelength associated with a gold-ball weighting 200 g...

    Text Solution

    |

  15. What possible can be the ratio of the de-Broglie wavelength for two el...

    Text Solution

    |

  16. In H-atom if r1 is the radius fo first Bohr orbit de-Broglie wavelengt...

    Text Solution

    |

  17. An alpha-"particle" is accelerated through a potential difference of V...

    Text Solution

    |

  18. de Broglie wavelength of electron in second orbit of Li^(2+) ion will ...

    Text Solution

    |

  19. The wavelength of a charged particle ………….. the square root of the pot...

    Text Solution

    |

  20. The uncertainty in the momentum of an electron is 1.0 xx 10^(-5) kgms^...

    Text Solution

    |