Question

7) How will you prepare oxide of magnesium and oxide of sulphur? How will you test their
acidic or basic nature?​

Answer 1

Answer:

oxide of magnesium and sulphur would combine to make magnesium sulphide.

to make their oxides :

Magnesium oxide is produced by the calcination of magnesium carbonate or magnesium hydroxide. The latter is obtained by the treatment of magnesium chloride solutions, typically seawater, with lime. Calcining at different temperatures produces magnesium oxide of different reactivity.

Sulphur dioxide is an acidic oxide. It can be prepared by heating conc. sulphuric acid with copper turnings

there are two methods to check whether it is acidic or a base

1.ph paper(orange paper)

2.Phenophthalene (liquid that changes pink in alkaline but colourless in acids)