Which one of the following exhibits dipole-dipole attraction between molecules?

Question

Which one of the following exhibits dipole-dipole attraction between molecules? XeF_4 AsH_3 CO_2 BCl_3 Cl_2 What types of intermolccular forces exist between PH_3 and N_2? dispersion forces and dipole-dipole forces dispersion forces and dipole-induced dipole forces dispersion forces and hydrogen bonds dispersion forces, hydrogen bonds, and induced dipole-induced dipole forces dispersion forces, hydrogen bonds, and dipole-induced dipole forces Of the following substances,_________has the highest boiling point. H_2O CO_2 CH_4 Kr NH_3 Which element is oxidized in the reaction below? Fe^+2 + H^+ + Cr_2O_7^-2 rightarrow Fe^+3 + Cr^+3 +H_2O Fe Cr O H Which element is reduced in the reaction below? I^minus + MnO_4^-+H^+ rightarrow I_2 + MnO_2+H_2O

Explanation / Answer

1. B) The molecule AsH3 is polar and as a result shows dipole-dipole attraction between the molecules.

2. B) There will be dispersion force and dipole-induced dipole force between molecules of PH3 and N2. Though the molecule Nitrogen is non-polar dipole is induced in the molecule due to presence of polar PH3 molecule.

3.A) Water has the highest boiling point among these compounds due to strongest hydrogen bonding between the molecules.

4. A) Fe is oxidized in this reaction from Fe2+ to Fe3+.

5. In this reaction MnO4- (oxidation number of Mn is +7) is reduced into MnO2 (oxidation number of Mn is +7).

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