Chemistry - Complete Pblock- Question with Solution | TestHub

The number of $p\pi -p\pi$ bonds in the central atom of (B) is 0.

Filled Valence Shell: Xenon (Xe) is a noble gas in the 5ᵗʰ period with a completely filled valence configuration ($5s^{2}5p^6$). No Vacant $p$-Orbitals: Because its $5p$ orbitals are entirely occupied, Xenon has no available $p$-orbitals to form $\pi$ bonds.

$p\pi -d\pi$ Bonding Only: Any multiple ($\pi$) bonding in Xenon compounds involves the overlapping of oxygen's $2p$ orbital with Xenon's vacant $5d$ orbitals, resulting in $p\pi -d\pi$ bonds.

Universal Rule for Xe: Since Xenon is inherently incapable of forming $p\pi -p\pi$ bonds, the answer is zero regardless of the identity of compound (B).