Question #11c25

1 Answer
Jul 11, 2016

Answer:

Ammonia (#NH_3#)

Explanation:

Looking at molecular symmetry, you can see that the answer is #NH_3#.

#NO_2^+# is linear, #AlCl_3# is trigonal planar and #ICl_4# is square planar, so any bond polarities will balance out overall giving no net dipole moment.

That leaves just ozone #O_3# and ammonia. Ozone has a very small dipole moment as all 3 atoms are identical, and you just need to factor in the effect of the lone pair.

Ammonia on the other hand has 3 extremely polar bonds plus a lone pair. Dipole moment of around 3 D as opposed to ozone's value of about 0.5.