Question

are 4. Which of the following pair of species isoelectronic? CO, NO (ii) N.CO (ti) CO, SnCI, iv) NO, CO.​

Answer 1

Answer:

Correct option is

D

IBr

2

−

,XeF

2

The compounds IBr

2

−

and XeF

2

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.