Question

vant Hoff factor of $Ca(N{O}_3{)}_3$ is

• A. one
• B. two
• C. three
• D. four

Answer 1

Answer: (C)

$Ca{\left(N{O}_3\right)}_2\to C{a}^{2+}+2N{O}_3^{-}$
It gives three ions hence the Van't Hoff factor $=3$.