Home
Class 11
CHEMISTRY
Why the maximum covalency of boron is on...

Why the maximum covalency of boron is only four where as that of aluminium is six ?

Text Solution

Verified by Experts

Aluminium has vacant d orbitals, hence it can expand its octet.
In boron, there are no d-orbitals at all. Hence it cannot expand its octet.
Doubtnut Promotions Banner Mobile Dark
|

Topper's Solved these Questions

  • ELEMENTS OF BORON FAMILY

    AAKASH SERIES|Exercise SUBJECTIVE EXERCISE-1 (Long answer questions)|7 Videos

  • ELEMENTS OF BORON FAMILY

    AAKASH SERIES|Exercise SUBJECTIVE EXERCISE-1 (Short answer questions)|14 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

Maximum covalency of nitrogen is four. Explain.

Maximum covalency of nitrogen in four. Explain.

Knowledge Check

  • The maximum covalency of nitrogen is

    A
    2
    B
    3
    C
    4
    D
    5

  • The maximum covalency of nitrogen is

    A
    2
    B
    3
    C
    4
    D
    5

  • The maximum covalency of aluminium is 6 where as that of boron is '4' because

    A
    Aluminium is more electropositive than boron
    B
    Al' can form a cation where as boron can not
    C
    Al' contains vacant 'd' orbitals in its valence shell where as boron does not
    D
    'Al' is a metal where as boron is a non metal

    • Similar Questions

    Explore conceptually related problems

    Write any four uses of aluminium.

    What is the maximum covalency of oxygen ? Give examples.

    The maximum covalency of aluminium is '6' where as that of boron is '4' because

    The maximum co - valancy of aluminium is '6' where as that of boron is '4' because

    The maximum covalency of Be and Mg respectively

    Home
    Profile