# The Van't Hoff factor of $BaCl_2$ is

$\begin{array}{1 1}(a)\;4\\(b)\;3\\(c)\;2\\(d)\;1\end{array}$

The van't Hoff factor, symbol i, expresses how many ions and particles are formed (on an average) in a solution from one formula unit of solute.
$BaCl_2\rightarrow Ba^{2+}+2Cl^{-} \rightarrow i =3$
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edited Apr 6