Question

Use VSEPR Theory to predict the molecular geometry around the central atom in each of the following molecules. Which of the following molecular geometries are correct?

1. XeF4, square planar
2. ICI., tetrahedral
3. SF4, seesaw
a. 1 and 2
b. 3 only
c. 1 and 3
d. 2 only
e. 1, 2 and 3

Answer 1

1. in XeF4, the central atom Xe has 2 pairs of free electron pairs and 4 bonded electron pairs hence it is square planar (correct)
2. I-Cl is only composed of 2 atoms, the only possible shape is linear
3. in SF4 the central atom S has 1 pair of free electron pair and 4 bonded electron pairs, hence the shape is seesaw (correct)

so the correct answer is 1 and 3