Home
Class 11
CHEMISTRY
Assertion(A): Line spectrum of Li^(+2) ...

Assertion(A): Line spectrum of `Li^(+2)` and `He^(+)` are identical
Reason(R): Isoelectronic species produce identical specturm

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

(A) is false but (R) is true

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

Similar Questions

Explore conceptually related problems

Line spectrum of Li^(+2) and He^(+) are identical due to

The line spectrum of two elements is not identical because

Assertion :- Bond order of O_(2) and BN is same . Reason O_(2) and BN are isoelectronic

Assertion (A): 'Li' electrode always acts as anode in voltaic cell Reason (R): 'Li' electrode has lowest SRP among all the electordes

Assertion (A): Lithium chloride is predominantly covalent compound. Reason (R ): electronegativity difference between Li and CI is small.

In the following questions, a statement of assertion (A) is followed by a statement of reason (R ) A : N_(2) CO and CN^(-) are having same bond order. R: Isoelectronic species always have same bond order .

NARAYNA-ATOMIC STRUCTURE-All Questions
  1. Assertion(A): The kinetic of the photo electron ejected increases with...

    Text Solution

    |

  2. Assertion(A): Threshold frequency is a characteristic for a metal Re...

    Text Solution

    |

  3. Assertion(A): Line spectrum of Li^(+2) and He^(+) are identical Rea...

    Text Solution

    |

  4. Assertion (A) : Hydrogen has only one electron in its 1s orbital but i...

    Text Solution

    |

  5. Assertion: It is essential that all the lines available in the emissio...

    Text Solution

    |

  6. Assertion (A) : In an atom, the velocity of electron in the higher orb...

    Text Solution

    |

  7. Assertion (A) : The radial probability of 1s electrons first increases...

    Text Solution

    |

  8. Assertion(A): Wavelength of limiting line of lyman series is less less...

    Text Solution

    |

  9. Assertion(A): The faster a particle moves, the greater its momentum an...

    Text Solution

    |

  10. Assertion(A): An electron cannot exist in the nucleus Reason(R): The...

    Text Solution

    |

  11. Assertion (A) : The position of electron can be determined with the he...

    Text Solution

    |

  12. Assertion(A): It is not possible to predict position and the velocity ...

    Text Solution

    |

  13. Assertion(A): deBroglie equation has significance for any microscopic ...

    Text Solution

    |

  14. Assertion (A) : There are two spherical nodes in 3s orbital Reason (R...

    Text Solution

    |

  15. Assertion (A) : A spectral line will be seen for 2p(x)-2p(y) transitio...

    Text Solution

    |

  16. Assertion(A): The P(x) orbital has maximum electron density along the ...

    Text Solution

    |

  17. Assertion(A): Electrons may be considered as particles and waves Rea...

    Text Solution

    |

  18. Assertion(A): psi indicates the amplitude of electron-wave psi^(2) d...

    Text Solution

    |

  19. STATEMENT-1: Half-filled and fully-filled degenerate orbitals are more...

    Text Solution

    |

  20. Assertion (A) : An orbital cannot have more than two electron Reason ...

    Text Solution

    |