The strongest P-O bond is found in the molecu | vedclass

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(A) The strength of the $P-O$ bond is influenced by the back-bonding from the oxygen $p$-orbitals to the phosphorus $d$-orbitals. Due to the highest e

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$F_3PO$

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(A) The strength of the $P-O$ bond is influenced by the back-bonding from the oxygen $p$-orbitals to the phosphorus $d$-orbitals. Due to the highest electronegativity of $F$ atoms,the $-I$ effect is strongest in $F_3PO$. This increases the partial positive charge on the $P$ atom,which enhances the back-donation of electrons from the oxygen atom to the phosphorus atom. Consequently,$F_3PO$ exhibits the strongest $P-O$ bond.

Column $I$ (Molecules)	Column $II$ (Number of lone pairs on central atom)
$A. \ NH_3$	$1. \ \text{Two}$
$B. \ H_2O$	$2. \ \text{Three}$
$C. \ XeF_2$	$3. \ \text{Zero}$
$D. \ CH_4$	$4. \ \text{Four}$
	$5. \ \text{One}$

The strongest $P-O$ bond is found in the molecule

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