Is Potassium chloride (KCl) polar or non-polar? – Polarity of KCl
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The question is –
Is KCl polar or nonpolar?
Answer:
⇒ KCl is strongly polar.
Explanation:
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.
Also, check –
⇒ How to know if a molecule is polar or nonpolar?
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