What factors are required for a molecule to be polar? (Choose all that apply) Th
ID: 1055563 • Letter: W
Question
What factors are required for a molecule to be polar? (Choose all that apply)
The presence of polar covalent bonds are required.
Polar bonds must be symetrically arranged around the central atom.
Polar bonds must be assymetrically arranged around the central atom.
There must be two or more polar bonds on the central atom.
The central atom must have a non-bonding pair of electrons.
The dipoles must add up to result in a net dipole.
The presence of polar covalent bonds are required.
Polar bonds must be symetrically arranged around the central atom.
Polar bonds must be assymetrically arranged around the central atom.
There must be two or more polar bonds on the central atom.
The central atom must have a non-bonding pair of electrons.
The dipoles must add up to result in a net dipole.
Explanation / Answer
A molecule is said to be polar if there is charge separation between the two atoms.
A molecule is said to be polar if they have polar covalent bonds
Polar bonds should be asymmetrically arranged around the central atom.( If the polar bonds are symmetrically arranged around the central atom, then the dipole moment cancels and molecule will be non polar)
The dipoles must add up to result in net dipole. Then the molecule is said to be polar.
If the molecule is having only one bond, even then polar nature exist. Eg- HCl . It is not necessary that molecule should have 2 or more bonds to be polar and also it is not necessary that the central atom should have lone pair ofelectrons or non bonding electrons
Thus,, the right options are a, c, f
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