Answer:
Step-by-step explanation:
Here, we want to get the geometry with the smallest bond angle
To get this, we look at the bond angle of each listed geometry
We proceed as follows:
a) Octahedral
For octahedral geometry, the bond angle is 90 degrees
b) Tetrahedral
For tetrahedral geometry, the bond angle is 109.5 degrees
c) Trigonal Planar
For trigonal planar, the bond angle is 120 degrees
d) Linear
For linear geometry, the bond angle is 180 degrees
The correct answer choice is thus octahedral