For numbers 19-22, consider IC15 19. What is the molecular geometry of the molecule? A. octahedral B. square pyramidal C. seesaw D. square planar 20. The hybridization of the central atom is A. SP B. sp? C. sp3 D. sp4 21. Which of the following set of words best describes IC15? A. polar 1-Cl bond, polar molecule C. polar 1-Cl bond, non-polar molecule B. non-polar l-Cl bond, polar molecule D. polar l-Cl bond, polar molecule 22. The formal charge of the central atom is A. O B. 1 C. 2 D. 3