Published by:
CGP EDU Academic Team
Published on: August 13, 2026
In which of the following molecules, the hybridisation of the central atom involves 
-orbitals?
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
Triiodide ion 
is made up of an 
molecule with an 
bonded to it by means of a
coordinate bond in which 
is lone pair acceptor (Lewis acid) and 
the lone pair donor (Lewis base).
There are two bond pairs and three lone pairs in the outer-shell of central atom.
To minimise the repulsive forces the three lone pairs occupy the equatorial position.
The ion is therefore linear in shape with a bond angle of exactly 
.
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