Question
Which one of the following pairs of molecules will have permanent dipole moments for both members?
A.
$$N{O_2}\,\,{\text{and}}\,\,C{O_2}$$
B.
$$N{O_2}\,\,{\text{and}}\,\,\,{O_3}$$
C.
$$Si{F_4}\,\,\,{\text{and}}\,\,\,C{O_2}$$
D.
$$Si{F_4}\,\,{\text{and}}\,\,N{O_2}$$
Answer :
$$N{O_2}\,\,{\text{and}}\,\,\,{O_3}$$
Solution :
Both $$N{O_2}\,\,{\text{and}}\,\,\,{O_3}$$ have angular shape and hence will have net dipole moment.