Which one of the following molecules has a dipole moment?
a. BeCl2
b. Br2
c. BF3
d. IBr
e. CO2
2007-12-26 11:56:58 · 4 answers · asked by Anonymous in Science & Mathematics ➔ Chemistry
IBr is the only polar molecule; a,b, & e are linear and c is planer, so the dipole moments of the components cancel.
2007-12-26 12:06:43 · answer #1 · answered by Flying Dragon 7 · 1⤊ 0⤋
I am assuming that a dipole moment denotes a temporary dipole or aka London force/London bond.
The answer would be b) Br2, because a London bond exists in covalent bonded molecules with less than 0.5 electronegativity so that there are no dipoles.
I will also assume that you know what London forces are. If you don't, please write back and I'll explain more.
2007-12-26 12:05:57 · answer #2 · answered by scherz0 3 · 0⤊ 1⤋
I believe D is the answer. A,C and E has dipole moment but not NET dipole moment. For choice B, Br-Br has only momentary dipole moment.
2007-12-26 12:13:56 · answer #3 · answered by Anonymous · 0⤊ 0⤋
I think D's correct.
And dude, chill. Stop sounding so desperate, pay attention in class, and do your own homework.
But then, thanks for the two points =)
2007-12-26 12:49:30 · answer #4 · answered by Alyssy 2 · 0⤊ 2⤋