- Give short answer to following questions 2x10 a) On the basis of MOT, explain the magnetic character of NO molecule. b) How does the MOT account for bond order of N;* and O;.? c) PCls can be formed but NCI5 cannot be. Why? d) Give the shape and hybridization of CS2, Al:Cls, NH." and ICl;. e) The bond angle of NH3, PHs and AsH3 decrease in the same order although hybridization of central atom is same. Why? f) CO: has four bonding electrons, while BeCla has two, but both are linear molecules. Comment. g) Discuss limitation of VBT. h) How band theory explains conductivity of metals. i) IF; has only one pyramid not two. Justify it. j) PCI, and SF, undergo sp'd hybridization. Why these molecules do not have same bond angle?