Home
Class 11
CHEMISTRY
Indium and thallium of Ill group have ne...

Indium and thallium of Ill group have nearly similar atomic radii due to poor screening effect shown by f-electrons in the

A

Penultimate shell of thallium

B

Anti penultimate shell of indium

C

Anti penultimate shell of thallium

D

Penultimate shell of indium

Text Solution

Verified by Experts

The correct Answer is:
C
Promotional Banner

Topper's Solved these Questions

  • ELEMENTS OF BORON FAMILY

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE - I) LEVEL - I (MAIN)|10 Videos

  • ELEMENTS OF BORON FAMILY

    AAKASH SERIES|Exercise LECTURE SHEET (EXERCISE - I) LEVEL - II (ADVANCED)|30 Videos

  • ELEMENTS OF BORON FAMILY

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE - 2 (Aluminum Chloride)|4 Videos

  • ELECTRONIC EFFECTS AND REACTION INTERMEDIATES

    AAKASH SERIES|Exercise ADDITIONAL PRACTICE EXERCISE (LEVEL - II (PRACTICE SHEET ADVANCE)) (Integer Type Questions)|3 Videos

  • ELEMENTS OF CARBON FAMILY

    AAKASH SERIES|Exercise OBJECTIVE EXERCISE - 3 (Recent AIPMT/NEET Questions) |10 Videos

Similar Questions

Explore conceptually related problems

Indium and thallium of III A group have nearly similar atomic radii due to poor screening effect shown by f-electrons in the

Indium and thallium of III A group have nearly similar atomic radii due to poor screening effect shown by f-electrons in the

The screening effect of inner electrons of an atom causes

In which of the following sets, elements have nearly same atomic radii?

f-block elements exhibit different oxidation state, colour, complex formation like properties. The size oflanthanides decreases due to poor screening effect of 4f electrons. It is called lanthanide contraction. Lanthanide hydroxides are basic in nature The colour of lanthanide ion is due to

Which of the following pair of group 13 elements have similar atomic radius

(A): Elements of second and third transition series have nearly same atomic radii (R): Lanthanide contraction is observed in the elements from atomic number 58 to 71.

AAKASH SERIES-ELEMENTS OF BORON FAMILY-PRACTICE EXERCISE
  1. B2 H6 + NH3 overset(120^@ C)to X . Where 'X' is

    Text Solution

    |

  2. Na2 B4 O7 10 H2 O overset("conc. HCl")to A. Compound 'A' is :

    Text Solution

    |

  3. Indium and thallium of Ill group have nearly similar atomic radii due ...

    Text Solution

    |

  4. The anhydride of boric acid is

    Text Solution

    |

  5. The statements regarding Diborane are i) B2 H6 is stable in the ab...

    Text Solution

    |

  6. Which of the following chloride is most unstable ?

    Text Solution

    |

  7. The reason for the formation of hydrogen bridge bond in B2 H6 is

    Text Solution

    |

  8. The chloride of one of the following elements is a stable covalent com...

    Text Solution

    |

  9. Which of the following is not a Lewis acid?

    Text Solution

    |

  10. Orthoboric acid behaves as weak monobasic acid giving H3 O^+ and

    Text Solution

    |

  11. Select correct statement(s) about H3 BO3

    Text Solution

    |

  12. The reactants in the industrial method of preparation of diborane are

    Text Solution

    |

  13. The total number of vacant orbitals involved in bond formation in dibo...

    Text Solution

    |

  14. Standard electrode potential values for Al^(3+)//Al is -1.66V and tha...

    Text Solution

    |

  15. Which is not correct in case of boric acid ?

    Text Solution

    |

  16. When diborane undergoes complete methylation, the number of hydrogen a...

    Text Solution

    |

  17. Diborane reacts with ammonia under different conditions to give a vari...

    Text Solution

    |

  18. 2Al + 6HCl to 2Al^(3+) + 6Cl^- + 3H2 2Al + 2NaOH + 6H2 O to 2Na(OH)...

    Text Solution

    |

  19. The oxides of group 13 elements are given as A) B2 O3 B) Al2 O3 ...

    Text Solution

    |

  20. Aluminium liberates dihydrogen gas with both dil.HCI and aqueous NaOH....

    Text Solution

    |