The polar molecules is NO.
What is polar molecule?
A polar molecule is one that has one end that is slightly positive and the other end that is slightly negative. Ionic or polar covalent bonds can form in polar molecule. A dipole is a molecule that has two poles. The dipole moment is the outcome of measuring the amount of polarity in a molecule.
NO molecule, In the periodic table, nitrogen is to the right of oxygen. Nitrogen has a lower electronegative potential than oxygen. All N-O bonds are polar, with the oxygen atom having a higher electron density. The uneven distribution of electrons in the NO molecule is quite minor. When a molecule is non-polar, the electrons are shared evenly, resulting in a non-polar bond, or the polar bonds are symmetric. So, oxygen, nitrogen and boron trihydride molecules are non-polar molecule.
Hence the correct option is D.
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