With what compound will nh3 experience only dispersion intermolecular forces? with what compound will nh3 experience only dispersion intermolecular forces? hcn ch3oh bf3 lif ch3f

Answer : NH3 will experience only dispersion forces with BF3.

Explanation :

There are different types of intermolecular forces (IMF) which are experienced by the molecules.

1) Hydrogen Bonds : These are present when a molecule has hydrogen atom attached to N , F or O atoms.

Among the given molecules, CH3OH can have hydrogen bonds.

2) Dipole-dipole interactions : These are experienced by polar molecules. Among the given molecules, CH3F and HCN being polar can have dipole dipole interactions.

3) Electrostatic forces of attraction : These are present among the oppositely charged ions of ionic compounds. Here, LiF can have these force.

4) Dispersion forces : London dispersion forces are dominant in case of non polar molecules.

In case BF3, the trigonal planar geometry cancels out the dipoles of individual B-F bond making the overall molecule non polar.

Therefore NH3 will experience only dispersion forces with BF3.

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