a)N2O3 ---> the central N atoms are sp2-hybridized. b) SF2 ---> the central S atom is sp3-hybridized. c) ClO2 ---> Cl is sp2-hybridized d) CS2 ---> C is sp-hybridized e) PF3 ----> P is sp3-hyridized Solution a)N2O3 ---> the central N atoms are sp2-hybridized. b) SF2 ---> the central S atom is sp3-hybridized. c) ClO2 ---> Cl is sp2-hybridized d) CS2 ---> C is sp-hybridized e) PF3 ----> P is sp3-hyridized.