Question

$Te{F}_5^{-},$ $Xe{F}_2,$ $I_3^{+},$ $PC{l}_3$
Which of the following shapes does not describe any of the above species?

• A. Square pyramidal
• B. Square planar
• C. Trigonal planar
• D. Linear

Answer 1

The correct option is C Trigonal planar

In,
$Te{F}_5^{-}$
Number of bond pairs (BP) = $5$
Number of lone pairs (LP) = $1$
Hybridisation = $s{p}^3{d}^2$
Shape = square pyramidal

In $Xe{F}_2$
Number of bond pairs (BP) = $2$
Number of lone pairs (LP) = $3$
Hybridisation = $s{p}^{3}d$
Shape = linear
In $I_3^{+}$,
Number of bond pairs (BP) = $2$
Number of lone pairs (LP) = $2$
Hybridisation = $s{p}^3$
Shape = bent

In $Xe{F}_4$
Number of bond pairs (BP) = $4$
Number of lone pairs (LP) = $2$
Hybridisation = $s{p}^3{d}^2$
Shape = Square Planar

In $PC{l}_3$,
Number of bond pairs (BP) = $3$
Number of lone pairs (LP) = $1$
Hybridisation = $s{p}^3$
Shape = trigonal pyramidal