Question

Magnesium chloride is an ionic compound formed by magnesium and chloride ions. The overall charge on its molecule will be _____.

• A. -1
• B. 1
• C. + 2
• D. None of these.

Answer 1

The correct option is D

None of these.

Molecules of ionic compounds are electrically neutral because they are made up of equal number of oppositely charged ions.

Magnesium chloride $\left(MgC{l}_2\right)$ has one magnesium $\left(M{g}^{2+}\right)$ ion and two chloride $\left(C{l}^{-}\right)$ ions. Hence, the overall charge gets balanced out.