Question

20. Point out the mistakes in the following and correct them:

(vii) ${\mathrm{CaNO}}_3$

Answer 1

1. The valency of Calcium is - $+2$.
2. The charge on Nitrate ion is - $-1$
3. One Calcium ($\mathrm{Ca}$) atom can lose two electrons.
4. One Nitrate (${\mathrm{NO}}_3^{-}$) ion can accept $+1$ charge.
5. So, one Calcium atom reacts with two Nitrate ions to give out Calcium nitrate.
6. The chemical formula of Calcium nitrate is $\mathrm{Ca}{\left({\mathrm{NO}}_3\right)}_2$.