Inorganic Chemistry I - Choose the correct answer

1. Which of the following pairs of molecules and their molecular geometries is WRONG?

a. NF₃ - trigonal planar            b. H₂O – bent     c. BF₃ - trigonal planar     d. AsF₅ - trigonal bipyramidal

2- Which of the following statements is TRUE?

a. The total number of molecular orbitals formed doesn’t always equal the number of atomic

b. A bond order of 0 represents a stable chemical bond

c. When two atomic orbitals come together to form two molecular orbitals, one molecular orbital will be lower in energy than the two separate atomic orbitals and one molecular orbital will be higher in energy than the separate atomic orbitals

d. Electrons placed in antibonding orbitals stabilize the ion/molecule

3. Which of the following symmetry element is denoted by Sn?

a. Improper rotation       b. Rotational symmetry     c. Inversion      d. Identity

4. What is the point group of CO?

a. C∞v      b. D∞h      c. Cs         d.C1

5. ClF₃ is a nonpolar molecule

a. True       b. False