Is Sodium hydroxide (NaOH) polar or non-polar? – Polarity of NaOH

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The question is –

Is NaOH polar or non-polar?


NaOH is extremely polar (net µ = 6.83 Debye).   


Sodium hydroxide (NaOH) is extremely polar in nature as it is an ionic compound composed of oppositely charged sodium (Na+) and hydroxide (OH) ions.

Ionic compounds are always polar in nature.

The hydroxide (OH) ion is a polar molecular ion as it comprises of an oxygen (E.N = 3.44) and a hydrogen (E.N = 2.20) atom, having an electronegativity difference of 1.24 units.

The strong O-H dipole moment stays intact in the linear molecular shape to yield an overall polar OH ion (net µ > 0).

Sodium being a metal, possesses a low electronegativity value (E.N = 0.93).

Oppositely charged Na+ and OH ions are held together by strong electrostatic forces of attraction in each NaOH unit cell to produce an extremely polar ionic compound with a high resultant dipole moment value.

is naoh polar or nonpolar

Also, check –

Is NaOH an acid or base?

How to know if a molecule is polar or nonpolar?

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