Home
Class 12
CHEMISTRY
If the ionic radii of each K^(+) and F^(...

If the ionic radii of each `K^(+)` and `F^(-)` are `1.34Å`, then tha atomic radii of `K` and `F` will be respectively:

A

1.34 and 1.34 Ã…

B

2.31 and 0.64 Ã…

C

0.64 and 2.31 Ã…

D

2.31 and 1.34 Ã…

Text Solution

Verified by Experts

The correct Answer is:
B

The size of K should be greater than its positive ion `K^+` and that of F should be smaller than its negative ion `F^-`
Promotional Banner

Topper's Solved these Questions

  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    DINESH PUBLICATION|Exercise Unit Test - 1|20 Videos
  • CHEMICAL BONDING AND MOLECULAR STRUCTURE

    DINESH PUBLICATION|Exercise Brain Teaser-1|40 Videos
  • CARBOXYLIC ACIDS

    DINESH PUBLICATION|Exercise BRAIN STORMING MULTIPLE CHOICE QUESTIONS (MCQS)|13 Videos
  • CHEMICAL KINETICS

    DINESH PUBLICATION|Exercise Additional Numerical Problems For Practice|16 Videos

Similar Questions

Explore conceptually related problems

If the ionic radii of K^(+) and F^(-) are nearly the same (i.e., 1.34A^(o) ) ,then the atomic radii of K and F respectively are:

The properties of the elements (atomic/ionic radii, electron gain enthalpy, ionization enthalpy, electronegativity, valence, oxidising/reducing power, acid/base character, etc.) which are directly or indirectly related to their electronic configirations are called periodic properties. These properties show a regular gradation on moving from left to right in a period or form top to bottom in a group. Down a group, the atomic/ionic radii, metallic character and reducing character increase while ionization enthalpy and electronegativity decrease. Along a period from left to right, atomic/ionic and metallic character decrease while ionization enthaloy, electronegativity, non-metallic character and oxiding power increase. However, electron gain enthalpy becomes less negative down a group butmore negative along a period. In contrast, inert gases have positive electron gain enthalpies which do not show may regular trend. If the ionic radii of K^(+) and F^(-) are about 1.34 Å each, then the expected value of atomic radii of K and F should be respectively:

The ionic radii of K^(+), Na^(+), Al^(3+) and Mg^(2+) are in the order

The radii of F,F^(-),O and O^(-2) are in the order of

The ionic radii of N^(3-), O^(2-) and F^(-) are respectively given by:

DINESH PUBLICATION-CHEMICAL BONDING AND MOLECULAR STRUCTURE-Brain Teaser-2
  1. The correct increasing bond angle among BF3 , PF3 and ClF3 follows th...

    Text Solution

    |

  2. The correct order of increasing electropositive character among Cu ,Fe...

    Text Solution

    |

  3. The size of ionic species is correctly given in the order

    Text Solution

    |

  4. The electronegativity difference between two atoms A and B is 2, then ...

    Text Solution

    |

  5. There are two nodes in the radial probability distribution curve for t...

    Text Solution

    |

  6. The bond angle in H2O (for H-S-H) is

    Text Solution

    |

  7. If the ionic radii of each K^(+) and F^(-) are 1.34Å, then tha atomic ...

    Text Solution

    |

  8. One among the following is the incrorrect order of increasing ionisati...

    Text Solution

    |

  9. Which of the following is false ?

    Text Solution

    |

  10. The d-orbitals involved in dsp^2 hybridisation is

    Text Solution

    |

  11. A 5.82 g silver coin is dissolved in nitric acid. When sodium chloride...

    Text Solution

    |

  12. Which of the following linear combinations of atomic orbitals is incor...

    Text Solution

    |

  13. In one among the following molecules the state of hybridisation of the...

    Text Solution

    |

  14. The state of hybridisation of sulphur in SO2 is same as that of sulph...

    Text Solution

    |

  15. The magnetic character of oxygen molecule is he same as that of one of...

    Text Solution

    |

  16. The density of the nucleus is

    Text Solution

    |

  17. Azimuthal Quantum number was given by

    Text Solution

    |

  18. Diatomic molecule has a dipole moment of 1.2D If its bond 1.0 Å what f...

    Text Solution

    |

  19. How many electrons are used in bonding the Lewis structure of C2O4^(2-...

    Text Solution

    |

  20. The energy required to stop ejection of electrons from a Cu plate is 0...

    Text Solution

    |