45 15 How many s-sp bonds are there in the following substance? 1 5 3 A) 1 B) 2 C) 3 D) 4 E) 6

What are the electron-pair geometry and the molecular structure of each of the following molecules or ions?(a) ClF5(b) ClO2−(c) TeCl42−(d) PCl3(e) SeF4(f) PH2−

Predict the electron pair geometry and the molecular structure of each of the following:(a) IOF5 (I is the central atom)(b) POCl3 (P is the central atom)(c) Cl2SeO (Se is the central atom)(d) ClSO+ (S is the central atom)(e) F2SO (S is the central atom)(f) NO2−(g) SiO44−

Estimate the percent ionic character of the bond in each of the following species. All the species are unstable or reac- tive under ordinary laboratory conditions, but they can be observed in interstellar space. Bond Length (À) Dipole Moment (D) OH 0.980 1.66 CH 1.131 1.46 CN 1.175 1.45 1.246

What is the electron geometry of: 1)IF2O- 2)BrF3O

Which of these molecules has a linear molecular geometry and the molecule is polar?           (A) CO2          (B) Cl2O          (C) N2O          (D) SO2

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Which of the following compounds requires the most energy to convert one mole of the solid into separate ions?(a) K2S(b) K2O(c) CaS(d) Cs2S(e) CaO

88.Which of these molecules and ions contain polar bonds? Which of these molecules and ions have dipole moments? (a) H3O+ (b) PCl4−PCl4− (c) SnCl3−SnCl3− (d) BrCl4−BrCl4− (e) ICl3 (f) XeF4 (g) SF2

Q2a Borazine is prepared by the reaction of ammonia with diborane? Explain the chemical reaction? b) draw out the resonance structure of borazine?