Which of these molecules has an atom with an expanded octet? A) NCl_3 B) Cl_2 C)

Question

Which of these molecules has an atom with an expanded octet? A) NCl_3 B) Cl_2 C) ICI D) AsCl_5 E) HCl According to the VSEPR model, which molecule is predicted to have a molecular geometry that is trigonal bipyramidal? A SF_6 B) XeF_4 C) SF_4 D) NF_3 E) PF_5 Which one of the following molecules is polar? A) CHBr_3 B) CO_2 C) CH_4 D) CBr_4 E) F_2 Carbon uses _____ hybrid orbitals in ClCN. A) sp B) sp^2 C) sp^3 D) sp^3 d E) sp^3 d^2 A sample of nitrogen gas at 298 K and 745 torr has a volume of 37.42 L. What volume will it occupy if the pressure is increased to 894 torr at constant temperature? A) 380 L B) 112 L C) 22.3 L D) 31.2 L E) 44.9 L

Explanation / Answer

Q27

molecules haf an expanded octet

NCl3 --> no expanded octet, nitrgoen has octet filled

Cl2 --> octec filled for each Cl-

ICl --> octed filled for Cl- and I-

AsCl5 --< espanded octect, As has 5x2 = 10 electrons instead of 8

HCl --> H donates electron to Cl-, and Cl has an expanded octect

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