Question

What, if anything, is precipitated when aqueous solutions of ba(oh)2 and mgso4 are mixed? 1. only mg(oh)2 2. nothing precipitates. 3. only baso4 4. both baso4 and mg(oh)2?

Answer 1

Answer: The correct option is (3) that is only barium sulfate will get precipitated out from the mixture.

Explanation:

When barium hydroxide and magnesium sulfate solutions are mixed together, a white precipitate of barium sulfate and magnesium hydroxide will be obtained.

$Ba(OH)_2(aq)+MgSO_4(aq)\rightarrow BaSO_4(white ppt)+Mg(OH)_2(aq)$