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Ammonia acts as a very good ligand but a...

Ammonia acts as a very good ligand but ammonium ion does not form complexes because

A

`NH_(3)` is a gas while `NH_(4)^(+)` is in liquid form

B

`NH_(3)` undergoes `sp^(3)` hybridisation while `NH_(4)^(+)` undergoes `sp^3` d hybridisation

C

`NH_(4)^(+)` ion does not have any lone pair of electrons

D

`NH_(4)^+` ion has one unpaired electron while `NH_(3)` has two unpaired electrons .

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • Nitrogen does not form complexes because

    A
    there are no vacant d - orbitals in the valence shell
    B
    the dissociation energy of nitrogen is very high
    C
    electronegativity of nitogen is very high
    D
    it has stable electronic configuration

  • Boron does not form B^(3+) ions because

    A
    boron has small size and high ionization energy
    B
    boron has high electronegativity
    C
    boron has high charge density
    D
    None of these

  • Boron does not form B^(3+) ion, because:

    A
    Energy required to form `B^(3+)` ion is very high which will not be compensated by lattice enthalpies of hydration enthalpies of such ion.
    B
    Boron is a non-metal.
    C
    Boron is a metalloid.
    D
    None of the above.

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    Assertion: Ammonia acts as a ligand. Reason : A lone pair of electrons on nitrogen can be donated to acceptor.

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