3.The hybridization of the central atom in KrF4O is: (A)SP (B)SP2 (C)SP3 (D)dSP3 (E)d2SP3

2.Which of the following statements is (are)incorrect? I.The hybridization of boron in BF3 is SP2. II.The molecule XeF4 is nonpolar. III.The bond order of N2 is three. IV.The molecule HCN has two pi bonds and two sigma bonds. (A)All four statements are correct . (B)III is incorrect. (C)Iand III are incorrect. (D)II and III are incorrect. (E)II, III and IV are incorrect.