Question

Which of the following molecules has a non-polar covalent bond?

• A. $HCl$
• B. $NaCl$
• C. $C{l}_2$
• D. $KCl$

Answer 1

The correct option is C $C{l}_2$

A covalent bond is non-polar if the electronegativity difference of the participating atoms is less or zero. Among the following molecules, $C{l}_2$ has a non polar covalent bond.
Due to high eletronegativity difference of $H$ and $Cl$, $HCl$ has polar covalent bond.
$NaCl$ and $KCl$ possess ionic bond.