Multiple choice

Magnesia alba is obtained by the addition of ____________.

  1. MgCO3 and MgSO4.7H2O

  2. CaCO3 and H2O

  3. AgCl and HNO3

  4. MgCl2 and MgO

  5. None of these

Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

This option is correct. Magnesia alba is a white substance, which is used in medicine as an antacid laxative and tooth powder, which is formulated as [Mg(CO3)x.Mg(OH)2]y.ZH2O.