What type of intermolecular interaction predominates in each substance? a. HBr b. SiF4 NH4oh
a) HBr is a highly polar molecule. Hence dipole-dipole interaction is present. Some dispersion forces are also present. And there is a slight hydrogen bonding is also possible between HBr molecules.
b) SiF4: It is although a tetrahedral molecule the bond dipole cancels each other and hence molecule becomes non-polar.
Hence there is only dispersion forces working between the molecules.
c) NH4OH: NH4OH is an ionic compound. N-H and O-H bonds are highly polar bonds present in this molecule. Hence there is strong ionic bonding is present. There are other forces as well present. However, the strongest force is ionic bonding.
An easy way to summarise this:
What type of intermolecular interaction predominates in each substance? a. HBr b. SiF4 NH4oh
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