Is Potassium chloride (KCl) polar or non-polar? – Polarity of KCl

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The question is –

Is KCl polar or nonpolar?


KCl is strongly polar.   


Potassium chloride (KCl) is a strongly polar ionic compound made up of oppositely charged potassium (K+) and chloride (Cl) ions with a high electronegativity difference.

All ionic compounds are polar in nature.

As per Pauling’s electronegativity scale, polar ionic bonds are formed between atoms/ions having electronegativity differences greater than 1.6 units between the bonded atoms.

A high electronegativity of 2.34 units exists between potassium (E.N = 0.82) and chlorine (E.N = 3.16) in a unit cell of KCl.

As 2.34 > 1.6, so each K+Cl bond is polar with a high dipole moment value (symbol µ).

Oppositely charged cation (K+) and anion (Cl) are held together by strong electrostatic forces of attraction. 

Consequently, potassium chloride (KCl) is a polar ionic compound.

Is KCl polar or nonpolar

Also, check –

Is KCl an acid or base?

How to know if a molecule is polar or nonpolar?

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