Question

Which of the following molecules experience dipole-dipole forces as its strongest IMF? A) H2 B) SO2 C) NH3 D) CF4 E) BCl3

Answer 1

Answer: $NH_3$

Explanation:

a) $H_2$: This  is a non polar covalent compound which are held by weak vanderwaal forces of attraction.

b) $SO_2$: This  is a covalent compound which is polar due to the presence of lone pair of electrons and are held by dipole-dipole forces of attraction.

c) $NH_3$: These are joined by a special type of dipole dipole attraction called as hydrogen bond. It forms between electronegative nitrogen atom and hydrogen atom and is the strongest interaction.

d) $CF_4$: This  is a covalent compound and is non polar which are held by weak vanderwaal forces of attraction.

e)  $BCl_3$: This  is a covalent compound and is non polar which are held by weak vander waal forces of attraction.