Question bank/JEE Main/Chemistry

For BF3 molecule which of the following is true?

AB-atom is sp2 hybridized.BThere is a pp-pp back bonding in this molecule.CObserved B-F bond length is found to be less than the expected
bond length.DAll of these

Show answer and solution▾

[IMAGE] Decrease in B-F bond length is due to delocalized
$p_{\pi}$-$p_{\pi}$ bonding between filled p-orbital of F atom and
vacant p-orbital of B atom.

Source: Grass-G / CH-19 Chemistry Paper 28 Nov. Fourth.docx