Question

The Van't Hoff factor of $NaCl$ assuming 100% dissociation is :

• A. $1/2$
• B. $2$
• C. $1$
• D. $3$

Answer 1

The correct option is B $2$

$NaCl\to N{a}^{+}+C{l}^{-}$

When NaCl dissociates completely, it gives two ions $N{a}^{+}$ and $C{l}^{-}$.

Therefore, Van't Hoff factor is 2.

Hence, option $B$ is correct.