Question

The hybridisation scheme for the central atom includes a d-orbital contribution in

• A. I\(_3^-\)
• B. PCl\(_3\)
• C. NO\(_3^-\)
• D. H\(_2\)Se

Hint:

Hybridisation involving d-orbitals occurs in molecules with central atoms from period 3 and beyond.

Answer 1

The Correct Option is A

Step 1: {Hybridisation of I\(_3^-\)}
I\(_3^-\) exhibits a linear geometry. The central iodine atom undergoes \(sp^3d\)-hybridisation, with three lone pairs positioned equatorially. This hybridisation scheme incorporates a d-orbital contribution. Therefore, option (A) is correct.