JEE MAIN - Chemistry (2003 - No. 63)
Which one of the following pairs of molecules will have permanent dipole moments for both members
NO2 and CO2
NO2 and O3
SiF4 abd CO2
SiF4 abd NO2
Giải thích
Here $$\mu $$total = $$\mu $$1 + $$\mu $$2 $$ \ne $$ 0
$$\mu $$total = $$\mu $$1 $$-$$ $$\mu $$2 = 0
$$\mu $$total = $$\mu $$1 + $$\mu $$2 $$ \ne $$ 0
$$\mu $$1 + $$\mu $$2 + $$\mu $$3 = $$\mu $$4
$$\mu $$total = 0
In NO2 and O3 have permanent dipole moment as both of them are not symmetric molecule.
In CO2 and SiF4 each individual bond c = O and S- $$-$$ F have dipole moment but because of symmetric structure individual dipole moment get's cancelled.