Q. Boron forms trivalent halides of the type BX3
. Pick out the wrong statement regarding these halides.
(a) BF3
is more acidic than BCl3
(b) Both BF3
and BCl3
are electron deficient compounds
(c) In BI3
boron does not exhibit any hybridization
(d) BCl3
can not undergo dimerisation to produce B2Cl6
Answers
The boron atom in BF3 is sp2 hybridized, with a vacant 2p orbital.
In BCl3, the 3p orbitals on Cl are bigger than the 2p orbital on B, so orbital overlap is less efficient, and backbonding is less important.
The LCP model is based on the observation that the X atoms (ligands) in AXn systems are always the same distance from each other.
For example, the distance between the F atoms in BF3 and BF - 4 is 226 pm,
Answer:
The boron atom in BF3 is sp2 hybridized, with a vacant 2p orbital.
In BCl3, the 3p orbitals on Cl are bigger than the 2p orbital on B, so orbital overlap is less efficient, and backbonding is less important.
The LCP model is based on the observation that the X atoms (ligands) in AXn systems are always the same distance from each other.
For example, the distance between the F atoms in BF3 and BF - 4 is 226 pm,
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