Question

Which of the following pairs of compounds is
isoelectronic and isostructural? [NEET-2017)
(1) BeCl2, XeF2 (2) Telį, XeF2
pr (3) IBrą, XeF2
444) IF₂, XeF₂​

Answer 1

Explanation:

The compounds IBr2− and XeF2 are isostructural. Both have the same number of valence electrons. Both have linear geometry as they have 3 lone pairs and 2 bond pairs of electrons. Electron pair geometry is trigonal bipyramidal and molecular geometry is linear.

Note: Isoelectronic compounds have the same number of electrons. This includes core electrons and valence electrons.